Question

(i) What is meant by conservation of water? Suggest three methods to conserve water.

(ii) What is rainwater harvesting? Describe the method of rainwater harvesting.

Answer 1

(i) Careful and economical use of water and avoiding its wastage is called conservation of water.

Suggestions for conserving water:

1. Use only the required quantity of water.

2. Trees and forests help in causing rainfall. So to conserve water, we should plant more and more trees.

3. By collecting rainwater in tanks, ponds or by constructing check dams.

(ii) Rainwater harvesting is the collection of rainwater and storing it for future use. In this system, rainwater is collected from the rooftops by means of pipes into the storage tank for later use.

Methods of Rainwater Harvesting:

1. Rooftop rainwater harvesting. In this system, the rainwater from the rooftop is collected in a storage tank, through pipes.

2. Another method, a big pit is dug near the house for collecting rainwater. This pit is filled with different layers of bricks, coarse gravel and sand or granite pieces.