Question

unit exam - air, noise, and water
how does non - point source pollution from urban area often enter water bodies?
its dumped directly into the water bodies
through direct industrial discharges
through runoff from parking lots, streets and lawns

Explanation:

Non - point source pollution (NPS) is pollution that comes from many diffuse sources. In urban areas, when it rains or when there is melting snow, water runs over parking lots, streets (which may have oil, grease, dirt, etc. from vehicles) and lawns (which may have fertilizers, pesticides). This runoff then carries pollutants into water bodies. Options A (it's dumped directly into the water bodies) and B (through direct industrial discharges) are more characteristic of point - source pollution, where the source of pollution is easily identifiable (e.g., a pipe from a factory dumping into a river).

Answer:

C. through runoff from parking lots, streets and lawns