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Q.

There are ________ ways of rainwater harvesting.

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a

Three

b

Two

c

Five

d

Four

answer is A.

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Detailed Solution

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There are two methods of rainwater harvesting. 

  • Surface runoff harvesting: In this method, rainwater flows away as surface runoff and can be stored for future use.
  • Rooftop rainwater harvesting: In this method, rainwater is captured from the roof catchments and stored in reservoirs.
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