Question

what are the method of rain water harvesting explain the aims of rain water ?​

Answer 1

Answer:

it reduces soil erosion and a flood hazards by collecting rainwater and reducing the flow of stormwater to prevent urban flooding most buildings that utilise rainwater harvesting system have a built in catchment area on top off the roof which has a capacity of collective large volumes of water in case of rainstorms

Explanation:

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Answer 2

Answer:

A rain water harvesting system has three main stages.

1. collection and transporting rain water.

2. Filtration.

3. Storage in tanks for reuse of water for purposes like irritating fields etc.