Water is very essential for humans to run daily activities like personal cleaning, cleaning of the house, cooking and drinking, if the level of water decreases in our body then our body cells will shrink and die.
When our drinking water gets contaminated it invites many diseases. Cholera, diarrhea, dysentery and typhoid spread.
Methods of water purification: Boiling, sedimentation and Decantation, chlorination of water, SODIS method and filtering