Why does the government not do more to regulate nonpoint source pollution

Hello!

The answer you were looking for is

(D) Nonpoint source pollution is difficult to regulate, because its source is difficult to track.

The answer is D

Explanation:

I just took the test

relative humidity, temperature and dew point -- are bound together in the mathematical relationship below. relative humidity changes when temperatures change. because warm air can hold more water vapor than cool air, relative humidity falls when the temperature rises if no moisture is added to the air. so i would say a

b is the correct answer