506
RCMultiple Choice

Unit Summary — Cumulative exam

Question 506 • Career Explorations - EL3401

Which of the following is true concerning sources of water pollution?

Answer
A
Mine wastes and heavy metals become water pollution through storm water runoff.
B
Biodegradable materials like food, wood, and leaves are not considered pollution.
C
Petroleum byproducts and fuels end up as pollution principally from oil spills.
D
Pesticides and herbicides do not commonly become water pollutants.

Explanation

Mine wastes and heavy metals can be washed into rivers and lakes by storm water runoff, making choice A true. Biodegradable materials can still pollute water, and pesticides and herbicides are common water pollutants. Petroleum pollution also comes from sources besides oil spills, such as runoff from roads and leaks.

AI-written and checked against the verified answer.

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