List main sources of water pollution.

Explain the three main sources of water pollution.

Name the main sources of air pollution.

What are the main sources of air pollution ?

Entrophication is a source of water pollution. It occurs when water:

What is the main causes of water pollution and how the pollution effects on mankind?

Assertion : Sewage, industrial effluents and waste water are non-point sources of water pollution. Reason : Surface runoff is point source of water pollution.