Why is the water polluted in these days?

Water is the most important resource of our life. We need water for various purposes. But now-a-days, water gets contaminated on daily basis. The main causes of water pollution is many human activities and industrial waste. Mostly water bodies gets polluted due to -- Sewage ans waste water, Industrial effluents and Industrial Usage, Deforestation,Agricultural run-offs, Accidents, and many more. There is one more serious cause Eutrophication that is caused when large quantities of nutrients are introduced into a body of water, causing the rapid growth of algae.

About 70% of the earth surface is covered by water and water is needed for any form of life to exist on the earth.Water is an essential part of both domestic as well as industrial purposes.Water pollution is caused in a number of ways and humans are the maincauseofwater pollution.One of the main reason of water pollution iscity sewage and industrial waste discharge.The dumping of marine garbage into the waters of the ocean.accidental oil leaks, chemicals and fertilizers leaks are some of the other reasons of water pollution.