Which of the following is not a major problem for U.S.public parks?

Question

Quizplus · Accepted Answer

Agricultural runoff is more commonly associated with problems affecting water bodies near agricultural areas rather than being a major problem for U.S. public parks specifically. The other options (introduction of nonnative species, killing of native species, polluted air, and deferred repairs of infrastructure) are well-documented issues facing U.S. public parks.

Which of the Following Is Not a Major Problem for U.S.public