Water pollution

Water pollution is the contamination of water bodies such as lakes, rivers, oceans, and groundwater caused by human activities, which can be harmful to organisms and plants which live in these water bodies.
Although natural phenomena such as volcanoes, algae blooms, storms, and earthquakes also cause major changes in water quality and the ecological status of water, water is typically referred to as polluted when it is impaired by anthropogenic contaminants and either does not support a human use (like serving as drinking water) or undergoes a marked shift in its ability to support its constituent biotic communities.
Water is so important ofr human.Human can not be life more than 3 days without water.So,how about the water all be polluted and many of people cannot get the water for life.It will affect the quality of healthy.Many of ill will be getted when take the polluted water for drinking.



For more information-go to http://en.wikipedia.org/wiki/Water_pollution