What human activities cause acid rain?

When caused by humans, acid rain is most commonly a byproduct of intense air pollution. As pollutants are pumped into the atmosphere, the particles rise up to the point where water can condense around them thereby forming water vapor and rain drops; however, those rain drops are closely intertwined with the pollutants thereby giving them an acidic nature.

Human activities contribute to acid rain because nuclear industries and other companies use carbon dioxide for their products so this element rises into the clouds and then theres a combination between water molecules and carbon dioxide this how acid rain is form

Answer (d) may increase or decrease porosity through dissolution or deposition;

The name may be in importnce  to them