1. Which is a colorless, odorless gas that is a naturally occurring decay product of uranium?
2. Which gas is emitted from most manufactured building materials and furniture?
3. Which is composed of fibers known to cause lung disease?
4. Which is found in old plumbing pipes and fixtures and some ceramic glazes?
5. Solids, liquids, and gases created through the compression of ancient organic plant and animal material in the Earth's crust are called
6. Zebra mussels are
7. Overgrazing of grasslands can lead to reduced range quality. Two of the major effects of overgrazing are
8. When species are transported geographically to an unknown area, they are called
9. In the workplace, bad air mixed with mold spores has led to
10. Soils found in mid-latitude grasslands would be most accurately described as having
11. The three main anthropogenic sources of gaseous air pollutants in the United States are:
12. Rachel Carson's contributions to the environmental movement include which of the following?
13. Which of the following best illustrates the concept of tragedy of the commons?
14. Which pesticide was banned due to its bioaccumulation in wildlife?
15. When an ecosystem reaches its final stage of balanced species development, it is called a(n)
16. The soil layer that contributes organic material to topsoil is the _____ horizon.
17. CAFE standards refer to
18. "The maximum number of species that can be sustained in an ecosystem." This sentence best defines
19. Ground-level ozone in most major United States cities results primarily from
20. An integrated pest management approach to pest control emphasizes which of the following?
21. The half-life of radon gas is approximately four days. Four weeks after the introduction of radon into a sealed room, the fraction of the original amount remaining is closest to
22. Prior to mine reclamation laws, mine drainage and acidic runoff from coal tailings were toxic byproducts of
23. Global warming works a lot like
24. Which community depends on periodic fires for reproduction?
25. Which of the following describes the heat-island effect?
26. The major reserves of nitrogen and sulfur in the biosphere are correctly identified by which of the following?
27. The biggest advantage of nuclear energy generation is that
28. Nuclear power is commonly generated using the element
29. A sustainable society would emphasize
30. Which of the following is managed on a multiple-use basis?
31. In the northern hemisphere, ocean gyres flow in what direction?
32. When logging is carried out in a watershed, a likely effect on the local streams is
33. Which of the following is a major goal of the program begun in 1995 to reintroduce the gray wolf into Yellowstone National Park?
34. Which of the following federal laws specifically deals with the cleanup of abandoned hazardous waste sites?
35. Losses of usable energy between successive trophic levels in an ecosystem are best accounted for by which of the following?
36. If the Earth had no atmosphere, the mean surface temperature would be approximately -15°C. With our present atmosphere, Earth's mean surface temperature is approximately +15°C. Which of the following is the best explanation for this difference?
37. Which of the following can be used to assess the biological diversity of an area?
38. City heat islands cause
39. Pollution is considered an external cost when
40. The consumption of mosquitoes by bats and the control of flooding provided by tropical forests in mountainous areas of Central America are examples of
41. The use of which of the following to control agricultural insect pests is most likely to have a negative and persistent impact on an ecosystem?
42. Alligators in a Florida lake polluted by high levels of dioxins (chlorinated hydrocarbons) had low testosterone levels and failed to reproduce. Scientists came to the conclusion that the dioxins were acting as which of the following?
43. The most economically important fish affected by hydroelectric dams is
44. Which is the following practices would have the biggest impact on achieving global sustainability?
45. Which of the following has a late-loss survivorship curve?
46. (streamwatch) What is the primary source of nitrates and phosphates in the wetland?
47. (streamwatch) Acid rain would be evidenced by
48. (streamwatch) The unit JTU is a measurement of
49. The large net used for catching fish in the wetlands is called a
Brendan Swanson