During the first thirty years of the Clean Water Act, the total discharge of pollutants into the nations waters has __________.
A) increased
B) decreased, but water pollution is still a serious problem
C) remained unchanged
D) ended completely
Correct Answer:
Verified
Q21: Dams provide a net _ of water
Q22: The amount of water underground is _
Q23: Wastes from nuclear power plants are _.
A)
Q24: A/an _ is an example of point
Q25: The largest use of water in the
Q27: An example of nonpoint source of pollution
Q28: Subsidence of the Earth's surface:
A) can be
Q29: The use of microorganisms to treat a
Q30: If oxygen is injected into a contaminated
Q31: A/an _ pollutant can be consumed and
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