Question

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


Please select the best answer from the choices provided

A
B
C
D

Answer 1

A

Explanation: Mine wastes and heavy metals are commonly carried into waterways by stormwater runoff and leaching. The other statements are false: biodegradable organics can deplete oxygen and pollute water, petroleum enters water by many routes (not just spills), and pesticides/herbicides commonly contaminate water via runoff and leaching.