exam 3 #2

exam 3 #2 - 1. Keeping energy prices artificially low...

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Unformatted text preview: 1. Keeping energy prices artificially low (Points: 1) encourages waste and rapid depletion of energy resources getting favorable treatment. protects consumers from sharp price increases. discourages the development of energy alternatives not getting favorable treatment. all of these answers 2. Inland wetlands include all of the following except (Points: 1) bogs. wet Arctic tundra. marshes. swamps. estuaries. 3. Inland wetlands are valuable for providing (Points: 1) wildlife habitat. improved water quality. regulated stream flow. all of these answers. none of these answers. 4. Which of the following activities causes more pollution and environmental degradation than any other human activity? (Points: 1) transportation agriculture industry recreation building houses 5. What is the largest wetlands restoration project? (Points: 1) the Okeefenokee the Everglades Dismal Swamp Chesapeake Bay Lake Michigan 6. Agriculture as it is currently practiced can cause (Points: 1) human illness from drinking groundwater polluted by nitrates. loss of genetic diversity through habitat degradation. contamination of recreational waters with livestock wastes. all of these answers none of these answers 7. Presently, subsidies do all but the following: (Points: 1) Sometimes lead to surpluses Protect farmers in the event of a weather, pest, or disease disaster Encourage sustainable agricultural practices Keep food prices low for consumers 8. Humans increase the likelihood of flooding by (Points: 1) building on floodplains urbanization removing water-absorbing vegetation draining wetlands all of these answers 9. Mathematical models indicate that organisms most vulnerable to habitat loss may be the (Points: 1) producers. herbivores. decomposers. top competitors. bacteria. 10. Which of the following effects is agriculture, as it is currently practiced, least likely to have on water resources? (Points: 1) eutrophication of aquatic environments sediment pollution from erosion recharging of aquifers (groundwater) flooding from land cleared to grow crops desertification 11. Which of the following statements is false? (Points: 1) Wildlife and mature trees are relatively unharmed by surface fires. Frequent surface fires increase the chance of a severe crown fire. Surface fires release minerals that are locked up in vegetation. Surface fires may actually benefit some plant species and some game animals. Surface fires burn away flammable ground material and help prevent more destructive fires....
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This note was uploaded on 09/18/2009 for the course BIO 120 taught by Professor Staff during the Fall '07 term at USC.

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exam 3 #2 - 1. Keeping energy prices artificially low...

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