Discussion
Which method of rainwater harvesting can be adopted by individual house owner ?
Answer: B
An individual house owner can adopt Roof top rainwater harvesting.
Rain falling on the roof is led through gutters and pipes, past a first-flush device and a simple filter, into a storage tank or a recharge pit or well. It needs only the house's own roof and a small plot, and many cities, Chennai among them, have made it compulsory for new buildings.
Creating a new water body, digging recharge trenches across a catchment and building large storage tanks are community or government works that need land, funds and planning beyond one household.
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