Question

Explain rainwater harvesting. How can it be done ?
Elaborate the technique.​

Answer 1

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• Rainwater harvesting the collection and storage of rain, rather than allowing it to run off. Rainwater is collected from a roof-like surface and redirected to a tank, cistern, deep pit, aquifer or a reservoir with percolation
• Rainwater harvesting is collecting the run-off from a structure or other impervious surface in order to store it for later use. Traditionally, this involves harvesting the rain from a roof. The rain will collect in gutters that channel the water into downspouts and then into some sort of storage vessel.

Answer 2

Answer:

There are two major techniques of rainwater harvesting.

Surface runoff harvesting. In this method, rainwater flows away as surface runoff and can be stored for future use. ...

Groundwater recharge. Groundwater recharge is a hydrologic process where water moves downward from surface water to groundwater.