Causes of pollution

Dear student,

The causes of pollution are:

* Emission of harmful gases and chemicals from factories and vehicles into atmosphere leads to air pollution.
* Discharge of wastes from factories and households into river and other water bodies contaminate water and cause water pollution.
* Dumping of toxic materials into land, overgrazing, deforestation damages the quality and fertility of land and causes land pollution.
* Loud sound generated from machinery, vehicles, speakers etc leads to noise pollution.

Regards