Question

which is an impact on the economy due to stormwater runoff? aquatic nuisance species can alter the environment and deplete populations of commercially valuable native species. nutrients carried by stormwater runoff reduce agricultural expenses by providing a free source of nitrogen and phosphorus needed for healthy plant growth. coastal communities save thousands of dollars annually in cleanup expenses as trash and litter is naturally carried away through stormwater runoff. important commercial and recreational fisheries may decline due to oil and chemical pollution carried by stormwater runoff.

Explanation:

1. Analyze each option:

• Option A focuses on environmental - species impact rather than economic.
• Option B is about a positive economic - agricultural impact, but it's not a common negative economic impact of stormwater runoff.
• Option C is a positive economic impact regarding cleanup, not a typical negative one.
• Option D mentions the decline of commercial and recreational fisheries due to pollution carried by stormwater runoff, which is a negative economic impact as it affects the fishing industry's economic value.

Answer:

D. Important commercial and recreational fisheries may decline due to oil and chemical pollution carried by stormwater runoff.