Green,other is the answer
Health disparities are a disproportionate number of health conditions and deaths compared with the general population i believe..
Hope it helps ; )
A/C/D: All of these answers are positive effects, of human water use.
By process of elimination it must be (B) Also the run off is basically stripping the soil of the nutrients a farmer would need to grow crops, so this is incredibly bad - but a problem easily fixed.