Need of the Hour : Rainwater Harvesting
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Answer:
Rainwater harvesting is 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, so that it seeps down and restores the ground water.
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Rainwater harvesting has been acclaimed as an exemplary method of water conservation, and is considered to be a “Green Practice”. It involves the collection of rainwater from rooftops or other hard surfaces above the ground level prior to its loss as surface run-off. This method of water conservation indirectly supports the replenishment of groundwater and compensates for the exhaustion of non-potable water.
Rainwater harvesting is an effective method of dealing with the water crisis that inevitably occurs in developing countries like India, Indonesia, Philippines, Malaysia, Sri Lanka, South Africa etc.. It can help to alleviate the water shortage in urban India to a large extent with proper management and investment.