Final answer:
Acid rain is a nonpoint source of pollution (secondary). It can damage soil, harm soil organisms, and kill plants and aquatic organisms when it falls into water bodies.
Step-by-step explanation:
Acid rain is a secondary source of pollution, also known as a nonpoint source. Nonpoint sources of pollution include various activities and processes that contribute to pollution over a wide area, such as emissions from industry and vehicles that are carried by wind and deposited as acid rain.
The effect of acid rain on the environment can be detrimental. When acid rain falls on the ground, it can damage soil and harm soil organisms. It can also kill plants and aquatic organisms when it falls into lakes and rivers, as the acidic water lowers the pH and disrupts their delicate ecosystems.