Water is not only necessary for the existence of life on the earth but it is required to perform several days to day activities like cleaning, washing clothes, bathing, cooking, etc.
Due to these activities, several substances get mixed up in the water which makes it unsafe for further consumption.
This addition of biological, chemical and physical substances in water is called water pollution.
These substances contaminate water and make it unfit for consumption of human beings and animals are called water pollutants.
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