Question

What is rain water harvesting state any four objectives of rainwater harvesting

Answer 1

to prevent drainage of water ,conservation of water

Answer 2

It is a technique of increasing the recharge of groundwater by storing rainwater locally, through roof water harvesting, refilling of dug wells, recharging of hand pumps, construction of percolation pits, trenches around fields and bunds or dams on small rivulets. The main objectives of rainwater harvesting are:

1. To meet the increasing demand of water.

2. To reduce the run-off which chokes the drains?

3. To avoid the flooding of roads.

4. To raise the underground water table.

5. To reduce groundwater pollution.