human
Question: Some plant species are more tolerant of acidic soil than others. The tolerant species are favored in areas affected by which consequence of human activity?

Choices:
A) mixing of pollutants with rain
B) erosion of topsoil by clearcutting
C) runoff of fertilizer used in farming
D) thinning of the atmospheric ozone layer
gpt
The correct answer is 0: mixing of pollutants with rain.