Air and water pollution are directly responsible for the loss of some species. In their studies of these pollution effects, biologists have determined that ________ are especially sensitive to air pollution, and are now being used as an index of urban
air quality.
A) songbirds
B) lichens
C) deciduous trees
D) warblers
E) evergreen trees
Answer: B
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The ideal texture for a soil to minimize the risk of pollution is one that
A) is very coarse, so that it drains efficiently. B) is very fine, so that it minimizes the contamination to groundwater. C) is very fine, so that it improves the ability to dissolve hazardous materials. D) is of moderate sized particles, to reduce ponding while still having some filtering capabilities.
________ is the process by which a rock changes form or mineral content as a result of environmental changes such as heat and pressure
A) Rifting B) Precipitation C) Metamorphism D) Foliation
There is geologic evidence that the earth has experienced many episodes of mountain building and erosion
Indicate whether the statement is true or false
Which of the following is not part of the climate system?
A) biosphere B) gyrosphere C) geosphere D) hydrosphere E) cryosphere