Q19 of 47 Page 491

What is the aim of water harvesting?

The aim of water harvesting is to collect and store rainwater by using special techniques for future use when there is shortage of water or during non-rainy days. This water can be used for irrigation or it can be purified and can be used for drinking and other domestic purposes.


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17

Local people around forests are referred to as “stakeholders” for conservation of forests. Give reasons.

 18

Sustainable development implies a change in all aspects of life. Justify the statement.

 20

“Burning of fossil fuels results in global warming.” Justify the statement.

 21

The construction of large dams leads to

(i) social, and


(ii) environmental problems. List two problems in each case.