Question

Which description is an example of point-source pollution? A. dumping acid from a bucket into a lake B. runoff of insecticide from a field C. pesticides flowing out of people's yards during a rainstorm D. acids that are contained in air settling on a lake surface

Answer 1

A dumping acid from a bucket into a lake

Answer 2

Point source pollution:

Point source pollution is an single source of pollution that is identifiable.

So this source can be different for different pollution that is air, water, land and noise.

Non-point source pollution:

Non-point source pollution is a pollution that results from many sources.

In the given lists of pollution only option A founds to be point source of pollution, that is dumping acid from a bucket into a lake. There is a defined single source of pollution that is acid in the bucket so it is an example of point source of pollution.