Environment

Question 1

  1. Write an essay consisting of at least 500 words addressing ALL of the following topics (a. through e.):
    1. Describe the Anthem Community Park in Maricopa, Arizona? Why do you think the authors included it in the textbook?
    2. Regarding heavy metals:
      1. Explain how heavy metals are an environmental health problem.
      2. How does a heavy metal get into the food chain?
      3. List two heavy metals and describe why they are health concerns.
    3. What are the pros and cons of DDT and PCBs? Why, at one time, were DDT and PCBs extremely useful chemicals, but now they are prohibited? Explain how Rachel Carson’s book, Silent Spring, had an influence on DDT regulations.
    4. If a soil consists of 65% sand, 25% silt, and 10% clay, what is its soil classification using the triangular soil classification chart?
    5. Describe the type of soil and bedrock in the city or military base where you reside (or the nearest city to your home or base).

You are required to use at least your textbook as source material for your response. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying citations.

Question 2

  1. Write an essay consisting of at least 500 words addressing ALL of the following topics (a. through h.):
    1. If the elevation of locations D and E are 30 m instead of 55 m, and all other items are the same as shown in Figure 2-5 on page 26 of your textbook, what is the pressure at D in kPa? Show your work.
    2. Explain how a Bourdon pressure gage works and how a pressure transducer works.
    3. A 6-inch diameter pipe flowing full carries water at an average velocity of 8 ft/s. What is the flow rate in the pipe in cfs? Show your work.
    4. In Figure 2-14(b), why is h2 less than h1?
    5. Explain what the hydraulic grade line represents and why it is useful.
    6. If water flows through a pressurized pipe with an HGL slope of 0.04 ft/ft over a distance of 2000 ft, what is the pressure loss in psi? Show your work.
    7. A particular gravity sewer conveys 2 cfs when flowing full. If instead, this sewer flows at a d/D ratio of 0.94 (see Figure 2-22 for definition of d/D ratio), what is the flow rate in cfs?
    8. Explain the differences between gradually varied flow and rapidly varied flow.

You are required to use at least your textbook as source material for your response. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying citations.

 

Question 1

  1. Write an essay consisting of at least 500 words addressing ALL of the following topics (a. through i.):
    1. Explain why rainfall varies throughout the United States.
    2. Explain how the urban hydrologic cycle is different from the natural hydrologic cycle.
    3. If 2 inches of rain falls during an 8-hour storm, what is the average rainfall intensity in inch/hour?
    4. Explain the concept of recurrence interval.
    5. Using Figure 3-6 in our textbook, what is the rainfall intensity (inch/hour) of a 100-year storm having a duration of 80 minutes?
    6. What is the 100-year, 24-hour rainfall in Minneapolis, Minnesota (in inches)?
    7. In a hydrograph, explain the concept of “base flow”.
    8. Perform an Internet search and provide a website that shows a hydrograph for a river in the state of Nebraska. What is the maximum flow (also known as discharge and flow rate) shown on the graph?
    9. Explain the concept of radius of influence of a pumping well.

You are required to use at least your textbook as source material for your response. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying citations.

 

50 points

Question 2

  1. Write an essay consisting of at least 500 words addressing ALL of the following topics (a. through i.):
    1. Describe the difference between atomic weight, atomic number, and isotope.
    2. If 15 grams of salt is dissolved in 500,000 grams of water, what is the salt concentration in ppm? Show your work.
    3. Explain the significance of the water quality parameters turbidity, temperature, color, taste, and odor.
    4. Describe biochemical oxygen demand. Why is it an important water quality parameter?
    5. A sewage sample has a 5-day BOD of 350 mg/L. If k=0.15/day, what is the ultimate BOD? Show your work.
    6. In Example 4-5 on page 91 of your textbook, what would be the TDS concentration (mg/L) if 150 mL of the sample were evaporated from the dish, rather than 100 mL (all other numbers remain the same)?
    7. Explain the significance of chlorine residual and fluoride in drinking water?
    8. What is the significance of algae and viruses to water quality?
    9. Describe the multiple-tube fermentation method for coliform bacteria?

You are required to use at least your textbook as source material for your response. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying citations.

 
 
 
 
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You Will Need To Write A 1-Page Lab Report Using The Scientific Method To Answer The Following Question:

Name:

Date:

Instructor’s Name:

Assignment: SCIE211 Phase 1 Lab Report

Title: Human Impacts on the Sustainability of Groundwater

Instructions: You will need to write a 1-page lab report using the scientific method to answer the following question:

· If current human development does not change, will groundwater sustainability be affected?

Part I: Using the time progression of industrialization and human development, fill in the data table below to help you write up your lab report.

Time Period Impact to Forest Groundwater Levels Saltwater Intrusion Farming Industrial development Population
1800s            
1900s            
2000s            

Part II: Write a 1-page lab report using the following scientific method sections:

· Purpose

· State the purpose of the lab.

· Introduction

· This is an investigation of what is currently known about the question being asked. Use background information from credible references to write a short summary about concepts in the lab. List and cite references in APA style.

· Hypothesis/Predicted Outcome

· A hypothesis is an educated guess. Based on what you have learned and written about in the Introduction, state what you expect to be the results of the lab procedures.

· Methods

· Summarize the procedures that you used in the lab. The Methods section should also state clearly how data (numbers) were collected during the lab; this will be reported in the Results/Outcome section.

· Results/Outcome

· Provide here any results or data that were generated while doing the lab procedure.

· Discussion/Analysis

· In this section, state clearly whether you obtained the expected results, and if the outcome was as expected.

· Note: You can use the lab data to help you discuss the results and what you learned.

Provide references in APA format. This includes a reference list and in-text citations for references used in the Introduction section.

Give your paper a title and number, and identify each section as specified above. Although the hypothesis will be a 1-sentence answer, the other sections will need to be paragraphs to adequately explain your experiment.

Here is a link that will help with the Lab:

https://class.aiu-online.com/_layouts/MUSEViewer/MUSE.aspx?mid=2444213

 
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According To Plato, What Would The People In The Cave Do To The Person Who Had Been Outside The Cave After This Person Returned To The Cave?

Purpose

 

Information

 

Point of view

 

Assumptions

 

Concepts

 

Breadth

 

Clarity

 

Logic

 

Inference

 

Intellectual relativity

A. Combination of thoughts that are mutually supporting and make sense in combination
B. A step of the mind whereby someone concludes that something is true based on something else being true or seeming to be true
C. Those things that humans take for granted based on their past experiential knowledge
D. Gateway intellectual standard that determines whether a statement is accurate or relevant
E. General categories or ideas that humans use to interpret and classify the information that comes into their thinking
F. The idea that nothing can be proven to be true
G. The frame of reference, perspective, or worldview that underlies one’s reasoning
H. The goal of objective of thinking
I. Thinking that demonstrates consideration of alternative points of view
J. Data, facts, and observations that are used by human reason to understand its reality

 

 

 

1.    Define inference and assumption, and then explain the relationship between the two. Provide two examples of inferences that you made from assumptions that you have.

 

Your response should be at least 75 words in length

 

1.    Describe two intellectual standards, and give examples of each from your own life.

 

Your response should be at least 75 words in length

 

Describe the movement of the person in Plato’s allegory of the cave. Be very specific about the various stages in this movement, and then please explain how this allegory relates to at least two intellectual standards.

Your response should be at least 200 words in length.

 

 

 
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Geo Science Due In 4 Hours

I need accurate working and representation for this as soon as possible

 

Geosci 105 Online

Activity #1:

I have randomly selected six measurements collected at the Mauna Loa sampling site between 1986 and 1993 and highlighted the data in light blue. Plot the six points on the given graph below in blue ink or blue pencil. To hand in eventually you will need to scan the graph or use your phone to take a photo of the graph. Based on your data, is CO2 increasing or decreasing? Determine the rate of increase/decrease by calculating the slope of the line (remember back to high school science that slope=?Y/?X or change in y-variable divided by change in x-variable) that best passes through your six data points.

Activity #2:

The CO2 concentration in the atmosphere is a concern because of it being an important greenhouse gas. High concentrations of carbon dioxide in the atmosphere contribute to global warming. How many years will it take for the CO2 concentration to double its 1993 content?

Activity #3:

I have highlighted six more measurements in red this time for the single year of 1988. Plot these six data points on your graph above.Does this change your interpretation? What new detail is added to the relationship when the more complete data is plotted? Whymight CO2 vary throughout an individual year? Maybe think about photosynthesis by plants where CO2 and H2O are converted into sugars and oxygen.

Activity #4:

Below is some of the most recent CO2 data from Mauna Loa. Are CO2 levels higher or lower than those from the last part of the previous table? What is one aspect of global warming that concerns you most?

 
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Evidence: Short Answer

SCI 100 2-1-2 Short Answer Rubric Describing Evidence

 

Critical Elements Proficient (100%) Needs Improvement (75%) Not Evident (0%) Value

Evidence Describes the evidence that supports the main idea or thesis of the news story

Describes the evidence that supports the main idea or thesis of the news story, but description is unclear or inaccurate

Does not describe the evidence that supports the main idea or thesis of the news story

25

Data Explains the data discussed in the news story

Explains the data discussed in the news story, but explanation is unclear or inaccurate

Does not explain the data discussed in the news story

20

Validity and Reliability Explains whether the information in the news story is valid and reliable

Explains whether the information in the news story is valid and reliable, but explanation is unclear or inaccurate

Does not explain whether the information in the news story is valid and reliable

25

Support Supports answer with evidence Supports answer with evidence, but evidence is unclear or inaccurate

Does not support answer with evidence

20

Communicates Clearly Clearly communicates key ideas and thoughts in a short-answer response

Response needs clarification in order to support understanding of key ideas and thoughts

Key ideas or thoughts are not understandable

10

Total 100%

 
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Incident Specific Annex On Tornadoes

Instructions

New Orleans has decided to mitigate against tornadoes through non-structural means.

Create a 1-page Incident Specific Annex on tornadoes to be added to the New Orleans Emergency Operations Plan.

Your New Orleans tornado incident-specific annex may contain:

  • 1. Purpose and Scope
    • Describe what functions this annex controls
  • 2. Direction & Control
    • ESF Coordinator in charge of these functions
    • Primary responsibilities
  • 3. New Orleans & Regional Support Agencies that can assist:

Make sure to include references!

 
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2 Science Discussions Due In 16 Hours

DUE IN 16 HOURS

Food Resilience Plan for Ashfordton [WLO: 2] [CLOs: 2, 3]

Prior to beginning work on this discussion forum, read Chapter 4 in your course textbook.

Imagine that you are a resident of Ashfordton, a community whose characteristics are described below. You have come together with your neighbors for a special meeting to devise a management plan for helping the community become more resilient and sustainable in terms of its food production by 2050. A community that is resilient is able to recover quickly from events like drought or storms. By increasing its own food production, Ashfordton can also reduce its food miles—the distance that imported food must travel. By making its food production more sustainable, Ashfordton can help ensure that its residents’ food needs are supplied for generations to come, without placing undue harm on the local environment in the process.

Fortunately, you have all attended the meeting with the knowledge that you have gained from your readings in this course. Now it is time to put your thinking cap on and get to work! Your ideas should consist of one or more of the following elements (some suggestions may apply to both categories):

  • Food resiliency measures (e.g., building vertical farms in the city center to ensure that urban residents can have access to fresh, organically grown produce).
  • Food sustainability measures (e.g., phasing out use of organic pesticides in favor of companion planting and other organic methods).

This week’s discussion will take place in an online app called Tricider. There, you will be able to post your ideas for plan components and also share pros and cons of different proposals during the week. Finally, you will be able to vote on the three components that you think the plan should include.

For directions on how to use the Tricider app, please review the Tricider Help Guide. In Tricider, you will be expected to do the following:

  • Post at least two separate and entirely original ideas. Do not duplicate ideas already posted by your peers.
    •  Include your full name for each one.
  • Post at least six different pros and six different cons for your classmates’ proposed ideas (12 in all).
  • Vote on what you feel are the top three ideas in the list.
    • Do not vote before Friday, so that you can vote from the full collection of student ideas.

You must complete the three tasks above to receive full credit for this discussion.

Please note: You are welcome to post questions and comments to this board for your instructor; however, this discussion board does not have any posting requirements of its own, and no additional credit will be given for posts made here.

In this discussion area, your instructor will post the following:

  • The Ashfordton description you will be using for this activity.
  • The link you will be using to access Tricider for this activity.

Food Resilience Plan Voting Rationales [WLO: 1] [CLOs: 3, 4, 6]

Prior to beginning work on this discussion forum, read Chapters 3 and 4 in your course textbook.

Now that you have cast your votes for the Ashfordton Food Resilience Plan, it is time to explain your choices to the class. Please make a post of at least 150 words in which you

  • Identify (briefly) the plan elements on which you voted.
  • Explain why you selected each one.

Each of the elements with an explanation is worth .5 point for a total of 1.5 points.

Note: You will not be able to view others’ posts until you have made your own. At the end of the week, the instructor will post the winning Ashfordton Food Resilience Plan, which will include the top three ideas selected by the class. In cases where two action items are judged by the instructor to be nearly identical, the instructor reserves the right to combine the ideas into a single one (and add votes together) in order to determine the winning ideas. This plan will be posted in the Announcements area of the classroom.

 

Required Resources

Text

Bensel, T., & Carbone, I. (2020). Sustaining our planet. Retrieved from https://content.ashford.edu

  • Chapter 3: Managing Our Population and Consumption
  • Chapter 4: Sustaining Our Agricultural Resources

Supplemental Material

Carolina Distance Learning. (n.d.). Properties of soil: Agricultural and water availability impactsPreview the document [Investigation manual]. Retrieved from https://ashford.instructure.com

  • The Properties of Soil: Agricultural and Water Availability Impacts investigation manual is available in the online classroom. This lab manual provides background information on soil properties and will assist you in your Properties of Soil: Agricultural and Water Availability Impacts Laboratory assignment.

Laboratory Supplies

Carolina Biological Supply Lab Kit  (Links to an external site.)

  • This lab kit provides lab supplies and materials for the hands-on labs that you will conduct for this course. Although the lab kit provides most of the lab supplies for the labs, there will be materials that you need to purchase independently for a few labs. Be sure to prepare a list of what you will need to purchase independently by viewing the lab investigation manuals and lab kits in advance. To see a checklist of the additional lab supplies that you will need each week for this course, access the Additional Lab Supplies Checklist.

Recommended Resources

Article

FoodPrint. (n.d.). Sustainable agriculture vs. industrial agriculture (Links to an external site.). Retrieved from https://foodprint.org/issues/sustainable-agriculture-vs-industrial-agriculture/?cid=246

  • This web page provides information about the basic elements of sustainable agriculture and may assist you in your Sustainable Living Guide Contributions: Sustaining our Agricultural Resources Assignment.
    Accessibility Statement does not exist.
    Privacy Policy (Links to an external site.)

Multimedia

Ashford University. (2018). SCI207 – The scientific method (Links to an external site.). Retrieved from https://ashford.mediaspace.kaltura.com/media/SCI207+-+THE+SCIENTIFIC+METHOD/1_5325onvq

  • This video provides information on the scientific method that will assist you in completing your Stream Morphology laboratory activity this week. This video has closed captioning.

Happen Films. (2017, May 21). Organic sustainable farming is the future of agriculture | The future of food (Links to an external site.) [Video file]. Retrieved from https://youtu.be/hWkYtZxpQUo

Web Pages

University of California Davis, Agricultural Sustainability Institute. (n.d.). What is sustainable agriculture (Links to an external site.). Retrieved from http://asi.ucdavis.edu/programs/sarep/about/what-is-sustainable-agriculture

Union of Concerned Scientists. (n.d.). What is sustainable agriculture? (Links to an external site.) Retrieved from https://www.ucsusa.org/food-agriculture/advance-sustainable-agriculture/what-is-sustainable-agriculture#.W1Ekbdgzqu4

  • This web page provides information about sustainable agricultural practices and may assist you in your Sustainable Living Guide Contributions: Sustaining our Agricultural Resources assignment.
    Accessibility Statement does not exist.
    Privacy Policy
 
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Answer 5 Questions

Question 1

Identify areas of the body that are more prone to injury. Of those identified, which usually involve chemical burns? Why? Also, of those identified, which usually involve heat burn injuries? Why? Your response should be at least 200 words in length. You are required to use at least your textbook as source material for your response. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying citations.

20 points

Question 2

Heinrich summarized what he thought health and safety decision makers should know about accidents. Identify his 10 Axioms of Industrial Safety. Compare these 10 ideas to his Domino Theory. Explain your answer. Your response should be at least 200 words in length. You are required to use at least your textbook as source material for your response. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying citations.

20 points

Question 3

Compare and contrast the Human Factors Theory in Practice with the Accident/Incident Theory in Practice. Explain ways that a safety system can fail, thereby contributing to these theories. Your response should be at least 200 words in length. You are required to use at least your textbook as source material for your response. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying citations.

20 points

Question 4

How does today’s rate of accidental work deaths compare with the rates of the early 1900s? What are the five leading causes of deaths on work sites today? Your response should be at least 200 words in length. You are required to use at least your textbook as source material for your response. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying citations.

20 points

Question 5

What are the five factors that workers should consider before beginning the process of collecting information in order to make a decision? Explain how you think pondering these factors can assist a worker in making an informed decision while on the job. How do stressors cloud the judgment of someone making decisions on-site? Your response should be at least 200 words in length. You are required to use at least your textbook as source material for your response. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying citations.

Answer

 
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100 Environmental Science Questions

5

Final Examination

GED 108 Environmental Science

Multiple Choice Questions (Enter your answers on the enclosed answer sheet)

1) The Millennium Ecosystem Assessment primarily characterized human impact on:

A) atmospheric carbon dioxide levels B) degradation of the ozone layer C) ecosystem services D) plate tectonics

2) The Fourth Assessment Report, released in 2007 concluded that global climate change is caused at least in part by the:

A) human use of fossil fuels to generate electricity and power engines B) human use of chlorofluorocarbons in refrigeration systems C) harvesting of millions of acres of corn, wheat, and soybeans around the world every year D) depletion of groundwater supplies

3) Carbon dioxide in the atmosphere contributes to global warming by:

A) transmitting visible light and absorbing infrared radiation B) transmitting infrared radiation and absorbing visible light C) transmitting infrared radiation and visible light D) absorbing infrared radiation and visible light

4) The Doha Round of WTO meetings have failed to reach agreement about:

A) currency exchange B) converting the economies of developed nation from green to brown C) farm subsidies and trade barriers D) how to control public protests at future WTO meetings

5) The classical economic paradigm and the new ecological economic paradigm differ in the way that:

A) each views the land, either as a resource within the human economy (classical) or as something that encompasses the economy (ecological) B) the value of capital is assessed, either in dollars (classical) or as resources that can be mined from the Earth (ecological) C) labor is determined, either as the number of people who are unemployed, not counting farmers (classical), or the number of people who are unemployed counting farmers (ecological) D) labor and capital are assessed, either counting the total labor and capital resources available (classical) or that which is in use in operations (ecological)

 

 

6

Final Examination

GED 108 Environmental Science

6) The ecological economic paradigm argues that the environment encompasses the economy because the environment is essential to provide:

A) the energy necessary to run our homes and factories. B) solar energy needed for plants and to light our environment during the day. C) transportation along highways, railways, rivers, and oceans. D) vital raw materials and ecosystem services and absorb wastes.

7) The ecological economists’ view emphasizes the role of:

A) amount and quality of capital available to industry. B) abundance of well-trained, well-educated labor that is available. C) natural ecosystems. D) public’s understanding of the natural environment.

8) In some deserts, there are mice and lizards that are about the same size. The mice eat grains and the lizards feed on insects. Given this information, we would expect that the biomass of the:

A) lizards would be about the same as the mice. B) lizards would be greater than the mice. C) mice would be greater than the lizards. D) lizards and mice would be about 10 times greater than the organisms that they consume.

9) Why are there so few ecosystems with more than four levels of consumers?

A) because biomass decreases by about 90% at each trophic level moving up B) because top consumers compete with and kill each other with increasing population size C) because consumers at these highest trophic levels typically form social groups that stop reproducing at high densities D) because predators at the highest trophic levels simply are not intelligent enough to hunt other top predators

10) The information of an energy pyramid reveals that:

A) it is expensive and inefficient to get most of your dietary calories from meats. B) it is expensive and inefficient to get most of your dietary calories from grains. C) consumers at lower trophic levels do not have as many calories as consumers at higher trophic levels. D) consumers at higher trophic levels are usually more abundant than consumers at lower trophic levels.

 

 

7

Final Examination

GED 108 Environmental Science

11) Modern civilization and population growth had their origins in which revolution?

A) Industrial Revolution B) Medical Revolution C) Green Revolution D) Neolithic Revolution

12) More efficient technologies, better urban and regional planning, policy and industrial changes will be required to drive which revolution?

A) Industrial Revolution B) Medical Revolution C) Green Revolution D) Environmental Revolution

13) Name the two most recent of the revolutions affecting the global human population.

A) Green Revolution and Environmental Revolution B) Neolithic Revolution and Industrial Revolution C) Medical Revolution and Neolithic Revolution D) Medical Revolution and Green Revolution

14) The transition from high death rates to low death rates in population is a result of the :

A) Industrial Revolution. B) Medical Revolution. C) Green Revolution, D) Environmental Revolution.

15) The five main revolutions of human history have all resulted in:

A) a greater reliance upon fossil fuels. B) an increase in human carrying capacity. C) a reduction in the spread of disease. D) increased need for transportation.

16) Developing countries have increasingly become involved in the integrated global economy primarily due to:

A) increased use of vaccinations. B) improvements in sewage and sanitation. C) constructions of dams and irrigation canals. D) increased use of technology.

 

 

8

Final Examination

GED 108 Environmental Science

17) A study is conducted to understand how some developing countries have made social and economic progress. Which of the following would be a surprising finding in such a study?

A) decreased fertility rates B) increased availability of clean drinking water C) decreased support of education D) a decline in extreme poverty

18) Which of the following descriptions is most characteristic of the world’s poorest people?

A) On her way to high school, a young girl walks along a path at the edge of a rice field. B) Filling a pot with clean water from a community water reserve, a mother prepares to make a meal of rice. C) A man in his 80s, smoking a cigarette, makes his way to cast a ballot in a national election. D) In a large city, a 12 year-old boy sits under a stack of tin he calls home.

19) In general, which of the following would best help to reduce extreme poverty?

A) programs specifically targeted to bring the poorest nations into the development process B) international efforts to promote economic growth in countries with the greatest poverty C) increased development of environmental protection in countries with the greatest poverty D) adoption of cultural programs that shift populations from rural to urban locations

20) Distilling salt water to make fresh water relies upon the processes of:

A) precipitation and infiltration. B) transpiration and evaporation. C) evaporation and condensation. D) condensation and transpiration.

21) Some lakes have river and stream tributaries but no outlet, losing water mainly through evaporation. Over time, we expect that such lakes will:

A) increase their fishing productivity. B) become deeper. C) become saltier. D) be good sources of drinking water.

22) Which of the following would we expect on the leeward sides of high mountain ranges?

A) rainforests B) deserts C) wetlands D) deciduous forests

 

 

9

Final Examination

GED 108 Environmental Science

23) The greatest worldwide use of water is for:

A) irrigation. B) industry. C) human consumption. D) washing and flushing toilets.

24) The single greatest threat to irrigated agriculture is:

A) groundwater depletion. B) global warming. C) flooding. D) None of the above

25) We would expect that soil leaching would be most severe in regions where:

A) there is little rainfall and no irrigation of crops. B) there is heavy rainfall. C) mollisols are abundant and farmers rarely plow. D) cattle are grazed and natural grasses cover the land.

26) In which of the following agricultural situations are fertilizers least needed?

A) A pumpkin patch is harvested only in the fall, and the vines remain behind. B) 1,000 acres of corn are raised and harvested for export from a midwestern farm. C) A natural prairie pasture where cattle feed and defecate. D) A field where a farmer applies cow manure after harvesting hay.

27) A farm field that has used only inorganic fertilizer for the past 20 years is most likely to have:

A) fewer soil organisms and less soil structure but increased nutrient holding capacity. B) fewer soil organisms, less soil structure, and decreased nutrient holding capacity. C) more soil organisms, more soil structure, and increased nutrient holding capacity. D) more soil organisms, less soil structure, and decreased nutrient holding capacity.

28) The charitable organization, Heifer International, uses donations to provide people in developing nations with farm animals to help feed hungry families. Heifer International is therefore contributing to:

A) the Green Revolution. B) subsistence farming. C) the Industrial Revolution. D) high impact farming.

 

 

10

Final Examination

GED 108 Environmental Science

29) Many people in the developing world primarily rely upon a diet of rice. Such a diet, even with plenty of rice available to meet the daily calorie requirements, runs the risk of:

A) malnutrition. B) overnourishment. C) undernourishment. D) obesity.

30) Regularly providing food to regions with chronic hunger in developing countries can aggravate the problem of food supplies by:

A) changing the types of native foods consumed by the local people. B) causing nutritional deficiencies associated with a new type of food. C) causing overnourishment and the health problems associated with obesity. D) decreasing the local production of food and disrupting the local economy.

31) Even using the best methods for sustainable agriculture, Green Revolution grain crops in developed nations are ultimately limited by:

A) weather. B) pests. C) soil degradation. D) problems with transportation and storage.

32) In sub-Saharan Africa and Asia, the major nutritional problems relate to:

A) inadequate exercise. B) malnutrition in pregnant women. C) undernourishment of adults. D) malnutrition and undernourishment, especially in children.

33) In the past 40 years, pesticide use has tripled yet pests still cause extensive damage to crops. Why has this increased use of pesticides not been more effective?

A) The pesticides in use today are much less powerful due to government regulations. B) The pesticides available are no longer suited for the most common types of pests. C) Increases in ultraviolet radiation and global warming break down pesticides faster. D) The widespread use of pesticides has resulted in the evolution of pesticide resistant pests

 

 

11

Final Examination

GED 108 Environmental Science

34) The goals of biotechnology currently include:

A) growing crops that are more resistant to drought and disease. B) producing greater crop yields in plants that can grow without water. C) altering plants to increase the production of coal. D) creating plants that do not need sunlight to grow.

35) As demands for electricity push the limits of existing electric-power-generating plants in the United States, when is it most likely that a brown-out or blackout will disrupt electricity to your home computer?

A) during a weekend in the winter B) during a weekday in the winter C) during a weekend in the summer D) during a weekday in the summer

36) A blackout like the eight-state blackout of 2003 could be prevented by:

A) using energy efficient lights in most businesses. B) a self-healing smart electrical grid. C) switching from coal to natural gas for electrical generation. D) greater use of electricity during the work week instead of weekends.

37) Fossil fuels represent:

A) a large amount of paleozoic and mesozoic biomass buried anaerobically millions of years ago. B) natural deposits of organic materials that formed long before life on Earth evolved. C) the remains of fossil animals that lived a few thousand years ago. D) sustainable sources of energy that are underused today.

38) The use of enhanced recovery by an oil company:

A) primarily depends upon the current market price of oil. B) is usually more cost effective than recovering oil using secondary recovery. C) has not yet been used because oil reserves remain abundant. D) is now routine, as every bit of oil is extracted from all available wells.

39) Currently, the greatest supply of natural gas in the United States is:

A) associated with petroleum deposits. B) in gas-rich shale. C) obtained by chemically converting petroleum into methane. D) in deposits of coal lying under Arizona and California.

 

 

12

Final Examination

GED 108 Environmental Science

40) The Obama administration has recently revised the CAFE standards affecting fuel economy:

A) higher mileage four years sooner, in 2016. B) higher mileage in the same period, in 2020. C) lower mileage in the same period, in 2020. D) lower mileage about four years later, in 2024.

41) Nuclear power plants are especially expensive because they:

A) require the highest levels of security. B) usually cost as much to decommission as they did to build. C) have so many parts that must be coated in gold. D) are constructed of many thick layers of concrete.

42) Over the past 50 years, interest in nuclear power:

A) rose, decreased, and now is increasing again. B) decreased, rose, and now is decreasing again. C) has remained high around the world. D) was high but then declined and continues to decline worldwide.

43) About 17,000 Russian nuclear warheads have been:

A) stored widely in the former Soviet Union where they remain today with minimal protection. B) dismantled, but their nuclear waste remains in Russian facilities with minimal security. C) dismantled, with the nuclear fuel purchased by the United States for its nuclear power plants. D) concentrated in two centralized Russian locations with high levels of security, awaiting long-term storage.

44) Looking at the number of nuclear power plants under construction in 2010:

A) the largest numbers have been in the United States, Canada, and France. B) China, the Russian Federation and India are in the lead. C) nuclear power is on the way out globally, with coal-fired plants rising steeply. D) the IAEA predicts that the current trend will be reversed.

 

 

13

Final Examination

GED 108 Environmental Science

45) Which of the following is a clear advantage in the use of nuclear power instead of fossil fuels?

A) Nuclear plants are cheaper to build than power plants that burn fossil fuels. B) Nuclear power can be used today to power most forms of public transportation. C) Nuclear power contributes less to global climate change. D) Nuclear power generates fewer wastes with lower health risks.

46) New buildings that receive the energy star rating are recognized for using:

A) solar or geothermal for at least 30% of the building’s energy needs. B) solar power for at least 50% of the building’s energy needs. C) wind power for at least 20% of the building’s energy needs. D) 40% less energy than other buildings in their class.

47) Photovoltaic cells are commonly used to power:

A) lawn mowers. B) lighthouses. C) calculators. D) industrial manufacturing.

48) Although they have tremendous advantages, wind turbines:

A) cause thousands of bird deaths each year. B) are known to dry out the soil in the surrounding region. C) make the surrounding region unsuitable for farming or ranching. D) generate greenhouse gases when producing electricity.

49) Buses and cars using fuel cells are:

A) not yet possible because the technology to safely store hydrogen is still not resolved. B) not yet available because the fuel cell generates unsafe levels of heat. C) still inefficient, largely because the fuel cells are large and heavy. D) already in use and ready for commercial production.

50) Which one of the following produces the least air pollution?

A) an automobile burning hydrogen as a fuel B) an automobile running on a hydrogen fuel cell C) a Toyota Prius hybrid vehicle D) a car running on natural gas

 

 

14

Final Examination

GED 108 Environmental Science

51) A tidal barrage would be used to generate electricity:

A) at the mouth of a bay. B) at the bottom of a large lake. C) near the tip of an ocean peninsula. D) in the open ocean.

52)Some milk becomes contaminated with mercury. If each of the following people consume 16 ounces of this contaminated milk each day for a month, who will most likely be impacted by this poison?

A) an 82-year-old woman B) a fetus inside a mother who drinks this contaminated milk C) a 12-year-old girl D) a 51-year-old man

53) In general, countries that enjoy the best health have:

A) the warmest climates. B) diets primarily based on eating grains. C) the largest families. D) good educational systems, particularly for women.

54) Malaria, dengue fever, and yellow fever are most common in:

A) North America. B) Australia and New Zealand. C) countries in the tropics. D) countries that are located nearest the poles.

55) The most effective antimalarial strategies involve the use of:

A) DDT, bed nets, and quick access to drug treatment. B) DDT, immunization, and the drainage of all standing water in a region. C) immunizations, surgery, and a change in diet. D) sterilization of mosquitoes, treatment of mosquito breeding sites, and antibiotics.

 

 

15

Final Examination

GED 108 Environmental Science

56) Risk assessment by the EPA currently follows four sequential steps. In order, these are:

A) exposure determination, dose-response determination, hazard control, and risk identi- fication. B) risk identification, hazard characterization, dose-response determination, and expo- sure control. C) hazard identification, dose-response assessment, exposure assessment, and risk char- acterization. D) risk characterization, exposure assessment, dose-response assessment, and hazard assessment.

57) The EPA’s new Tox-Cast program:

A) uses enhanced animal testing to screen potentially toxic chemicals. B) uses human cells such as stem cells to rapidly screen potentially toxic chemicals. C) has initiated media campaigns to alert the public to toxic chemicals. D) uses human cancer patients to screen potential allegins in the workplace.

58) The inside of a car or greenhouse would not heat up as much in the presence of sunshine if:

A) air was circulated within the car or within the greenhouse. B) infrared radiation passed through glass as easily as sunlight. C) infrared radiation could not pass through glass as easily as sunlight. D) sunlight could pass through glass more easily than through air.

59) Global warming is raising sea levels because of:

A) melting ice and thermal expansion. B) ocean basins compressed by continental drift. C) greatly increased precipitation. D) increased use of irrigation and drainage of wetlands on land.

60) Which one of the following has been declining globally over the past several decades?

A) nitrous oxide levels in the troposphere B) methane levels in the troposphere C) mean global temperature D) pH of the world’s oceans

61) When generally comparing life in suburban sprawl and life in the inner city, people living in the inner city:

A) walk more and shop locally. B) have larger homes and better city services. C) experience lower crime rates. D) enjoy lower-density residential living.

 

 

16

Final Examination

GED 108 Environmental Science

62) Tired of the traffic jams downtown, Roxanne decides that she wants to move out to the suburbs; then she won’t have to spend so much time in the car. One major problem with this decision is that on average, people living in suburbs:

A) have to pay much more money for housing. B) spend much more time walking to their destinations. C) are faced with higher crime rates that add many more problems. D) spend as much time commuting as people living closer to the city.

63) The choices to live in ever-expanding suburbs, despite the costs to society and the environment, reflects a choice that places greater value on:

A) personal good over common good. B) common good over personal good. C) resource services over environmental services. D) environmental services over human services.

64) Organizations such as the Shack/Slum Dwellers International are helping the people who live in the vast slums surrounding major cities by:

A) helping them dig wells for drinking water and grow vegetable gardens near their homes. B) representing them to institutions such as the World Bank and city governments. C) constructing public transportation systems within developing cities. D) relocating them into the rural countryside where jobs are abundant.

65) One of the most common and essential ways that modern cities have become more livable is by:

A) decreasing the density of the population throughout the cities. B) shifting emphasis from personal automobiles to public transportation.

C) eliminating all city taxes and instead relying upon federal aid. D) requiring all citizens to perform monthly community service.

66) The changes in behavior of the fishermen on Tangier Island since 1997 best reflects:

A) values-based stewardship. B) personal gain. C) sound science. D) sustainable use of energy.

 

 

17

Final Examination

GED 108 Environmental Science

67) In a chemical reaction:

A) atoms are destroyed. B) atoms are rearranged to form different kinds of matter. C) new atoms are formed. D) new elements are formed.

68) Which of the following would most likely cause the greatest harm to wild Giant Panda populations in China?

A) captive breeding of giant pandas already in zoos throughout the world B) restricting logging in regions within the current Giant Panda range C) promoting the giant panda as a national symbol of China D) the introduction of beetles that eat bamboo

69) Which one of the following statements is correct?

A) Atoms are composed of protons and compounds are composed of neutrons and electrons. B) Atoms are the smallest components of an element that have the element’s properties. C) Solids are made of elements, liquids and gases are made of compounds. D) Water is an element made from two compounds.

70) Which one of the following is a molecule but not a compound?

A) O2 B) H2O C) CO2 D) CH4

71) Most organisms use water in:

A) liquid form. B) the form of rain. C) solid form. D) gaseous form.

72) Most of the energy captured by photosynthesis is stored in chemical bonds in:

A) oxygen. B) carbon dioxide. C) water. D) glucose.

 

 

18

Final Examination

GED 108 Environmental Science

73) In general, K-strategists have a:

A) type I survivorship pattern, and r-strategists have a type III survivorship pattern. B) type II survivorship pattern, and r-strategists have a type I survivorship pattern. C) type II survivorship pattern, and r-strategists have a type III survivorship pattern. D) type III survivorship pattern, and r-strategists have a type II survivorship pattern.

74) In general, it is rare for a parasite to:

A) feed on a host. B) kill its host. C) spread from one host to another. D) compete with other parasites for access to a host.

75) Rabbits in Australia:

A) have recently been eliminated by introducing a lethal rabbit virus. B) are an example of the disastrously high biotic potential of some introduced species. C) evolved with marsupials and are a natural part of the Australian landscape. D) have now evolved into three new species as the rabbits have adapt to their new environments.

76) Which one of the following illustrates intraspecific competition?

A) a butterfly feeding on the nectar of a daffodil flower B) a sea gull swooping down to snatch a fish from the water’s surface C) a tick and a flea sharing a dog’s back D) male red-winged blackbirds defending nesting sites from other males

77) The concept of fitness is based on two separate abilities. These are the ability to:

A) survive and reproduce. B) find a mate and have offspring. C) defend against enemies and find food. D) produce and defend a family.

78) Which one of the following is characteristic of a K-selected species?

A) fast reproductive rate B) large body size C) short life span D) production of large numbers of offspring

 

 

19

Final Examination

GED 108 Environmental Science

79) Rachel Carson was particularly critical of the use of DDT to:

A) eradicate mosquitoes in wetland areas. B) control the spread of Dutch elm disease. C) control pests in national parks. D) fertilize large areas of corn and soy crops.

80) The global human population in 2013 was more than:

A) 10 billion and is increasing at an annual rate of 5%. B) 2.2 billion and is no longer growing. C) 7.1 billion and is growing at a rate of 1.2%. D) 13 billion and is decreasing at a rate of 3% in developing nations.

81) 40) Because of the modern environmental movement: A) world population has remained stable. B) coal power plants are the main source of our electricity. C) federal government is less involved in environmental policy. D) solved some pollution problems.

82) The statement, “The Earth was not given to you by your parents, it was lent to you from your children” best reflects:

A) junk science. B) higher rates of consumption of non-renewable materials. C) stewardship. D) the need for a strong central or military government.

83) Which of the following has been most negatively impacted by globalization?

A) local cultures’ religious and dietary traditions B) agricultural practices C) public-health practices D) the exchange of information

84) The foundation of all science and scientific discovery is:

A) an already accepted theory. B) experiments. C) multiple hypotheses, some of which are unanswerable. D) observations.

 

 

20

Final Examination

GED 108 Environmental Science

85) In the classical view of economic activity, households:

A) are paid for goods and services. B) pay for most of the labor. C) consume goods and services. D) provide most of the products.

86) Which is an example of produced capital?

A) stocks and bonds B) laws and policies C) organically grown mangoes D) fisheries

87) Environmental public policy is intended to:

A) promote the harvesting of natural resources. B) improve human welfare and protect the natural world. C) ensure access to natural resources for industry. D) measure the impact of industrial wastes on the environment.

88) Today, DDT is no longer used in the United States because it is banned by law. At this point, the issue has reached the:

A) control stage. B) implementation stage. C) formulation stage. D) recognition stage.

89) The modern U.S. environmental movement began as a:

A) very partisan, divided effort, but now has broad bipartisan support. B) very partisan effort, which remains partisan and highly contested today. C) broad bipartisan effort, which remains in effect today. D) broad bipartisan effort but has fractured into a very contentious partisan debate with intense lobbying.

90) The Obama administration:

A) now censors scientific study that conflicts with its position. B) now encourages the development of renewable energy and reduction of carbon emissions. C) no longer requires consultation with wildlife experts before approving projects potentially harming endangered species. D) has slashed the EPA’s budget so that little enforcement is possible.

 

 

21

Final Examination

GED 108 Environmental Science

91) Which biome is characterized by permafrost?

A) tundra B) high latitude temperate forests C) cold deserts D) high latitude coniferous forests

92) This stage of succession starts with preexisting soil:

A) aquatic to terrestrial succession. B) primary succession. C) intermediate succession. D) secondary succession.

93) Which of the following represents a resilience mechanism?

A) crown fires resulting from many years of fire suppression B) the emergence of a meadow in a recently burned forest C) soil erosion resulting from burned soil washing away from a forest floor D) burned trees accumulating on a forest floor after a fire

94) Energy transfer between trophic levels in aquatic systems is generally:

A) less efficient than terrestrial food pyramids. B) less efficient than a detritus food web because aquatic systems lack fungi. C) inverted, in which more energy is transferred from one trophic level up to the next. D) more efficient than terrestrial systems.

95) About 40% of the land’s primary production on Earth:

A) has been destroyed by global climate change. B) has been appropriated to meet human needs. C) uses more oxygen than it produces. D) has been lost just to build enough homes for all of the people on Earth.

96) The social and economic changes in Thailand over the past 50 years have:

A) caused the population to decline by 20%. B) been at the expense of poorer nutrition for children. C) slowed population growth significantly. D) shown that the nation has yet to undergo the fertility transition.

 

 

22

Final Examination

GED 108 Environmental Science

97) Two conflicting approaches to helping countries through the demographic transition require different types of aid. An attempt to provide aid using both approaches might include:

A) desalination plants to bring in more fresh water and distribution of vaccines. B) shipments of large amounts of food and improvements in sanitation systems. C) construction of recycling plants and investment in pollution control systems. D) investments in banks and distribution of birth control.

98) The most recent Cairo population conference in 1994 found widespread agreement that the greatest way to help developing countries was to:

A) limit their population growth. B) increase their use of modern medicine. C) improve their agricultural productivity. D) limit their environmental degradation.

99) The window of opportunity presented by the demographic dividend generally ends as:

A) people start having larger families. B) people live longer. C) economic pressures require more people to work. D) rural populations increase.

100) The Millennium Development Goals were wide ranging, but did not specifically address:

A) communicable disease. B) maternal health and child mortality. C) higher secondary and college education. D) environmental sustainability.

 
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Literature Review-Four Pages-Compare And Contrast A Carcinogen That Is A Mutagen To A Carcinogen That Is Not A Mutagen

Four pages not including cover page or references

This unit’s assigned reading focuses on chemical-induced mutagens. As you are aware from the reading, not all carcinogens are mutagens. For this assignment, compare and contrast a carcinogen that is a mutagen to a carcinogen that is not a mutagen. Find at least four peer-reviewed journal articles published within the last 7 years that discuss the carcinogens and the cancer that each causes.

Compare the means of exposure of each chemical and the type of cancer each causes. Be sure to integrate the perspective and information gathered from each article into a discussion in your own words.

Your literature review must include the following components:

  • an introduction of your topic of choice (include some background information on the origins of exposure and cancer),
  • the methods used to search for the articles,
  • the results of the articles,
  • a discussion and conclusion with your own opinion, and
  • APA references and in-text citations for the article.

The literature review must be t four pages in length and follow APA formatting.

 
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