Multiple Choice
_________ sources of water pollution are relatively easy to monitor and regulate, while _____________ sources of water pollution are difficult to monitor and clean up.
A) Domestic; industrial
B) Primary; tertiary pollutant
C) Nonpoint; point
D) Tertiary pollutant; primary
E) Point; nonpoint
Correct Answer:

Verified
Correct Answer:
Verified
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Q16: Tertiary treatment of sewage produces water that
Q17: Since the Clean Water Act of 1972,
Q18: Toxic metals such as lead, cadmium, and
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