Question

which of the following is not a way humans positively impact surface water?
a. farmers create buffers of plants and trees to filter water before it enters surface water
b. builders use permeable concrete that will reduce runoff to surface water
c. after humans use water, it flows to a surface water holding area to either be treated for reuse or cleaned before releasing it back to a lake, pond, or river
d. homeowners sweep grass clippings from mowed lawns into the street drains

Explanation:

Positive impacts on surface water involve actions that protect, filter, or clean it before it enters water bodies. Option A filters water with plants, Option B reduces runoff that carries pollutants, Option C treats water to remove waste. Option D introduces yard waste into storm drains, which flows to surface water and causes pollution, so it is NOT a positive impact.

Answer:

D. Homeowners dump grass clippings from mowed lawns into the sewer drains