Water our life line
- Clean water useful for several purposes is not available to all.
- Clean water is a basic need of human being because clean water is useful for drinking, cooking, bathing, watering the plants and also for keeping ourselves clean.
Fig. Water for drinking, cooking, bathing
- 22 March is celebrated as World Water Day.
- The process of removing pollutants before it enters a water body is called as cleaning of water.
- The process of cleaning of water is commonly known as Sewage Treatment.
Fig. Sewage Treatment