What Is Water Pollution?

Water pollution occurs when harmful substances—often chemicals—contaminate a stream, river, lake, ocean, or other body of water, degrading water quality and rendering it toxic to humans or the environment.

What are the main causes for water pollution?

Here are the few major causes of water pollution: Sewage And Waste Water and liquid waste of households, agricultural lands and factories are discharged into lakes and rivers. These wastes contain harmful chemicals and toxins which make the water poisonous for aquatic animals and plants.