Question

Why rainwater harvesting must be promoted throughout the drought prone areas?

Answer 1

because there is lack of water. rainwater harvesting is promoted to fulfill the water need

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Answer 2

the water harvesting must be promoted throughout the drought prone areas because the water is very less in the These areas . the rain Falls very less in These areas and there is no water so when they store water from rain harvesting it is helpful for them for doing some other works like washing clothes ,washing utensils , for bathing and some other works