What are the two main techniques of rainwater harvesting?
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rainwater harvesting is the direct collection of rain from the roof for immediate or future use.
rainfall is often scanty and it is necessary to save available rainwater.
rainwater should be tapped from the ground when it is necessary.
rainfall is often scanty and it is necessary to save available rainwater.
rainwater should be tapped from the ground when it is necessary.
Answered by
34
1.Surface runoff harvesting
2.Roof top rainwater harvesting
2.Roof top rainwater harvesting
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