Question

explain only modern method of rain water harvesting ​

Answer 1

Answer:

GROUND WATER DAMS

This method of rainwater harvesting is used majorly in places where the underground water level varies. A dam is constructed underground to obstruct the flow of underground water and create a reservoir to store water. ... Also, the water stored underground does not reduce by way of evaporation.

Explanation:

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Answer 2

Answer:

GROUND WATER DAMS

This method of rainwater harvesting is used majorly in places where the underground water level varies. A dam is constructed underground to obstruct the flow of underground water and create a reservoir to store water. ... Also, the water stored underground does not reduce by way of evaporation.

Explanation:

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