Rain water harvesting is the collection of rain water and storing for future use. In this system rain water is collected from the roof tops by means.of pipes into storage tank for later use
(i) Methods of rain water harvesting:
1. Roof top rain water harvesting : In this system the rain water from the roof top is collected in a storage tank, through pipes
2. Another method:A big pit is dug near house for collecting rain water This pit is filled with different layers of bricks, coarse gravels and sand or granite pieces.
(ii) Complete the flow chart:
