Water harvesting system in hilly/mountain areas is

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Rain is collected from the roof surfaces and stored in reservoirs, and deep pits.

None of the above

Kuhl is one of the modes of water harvesting in hilly areas.

Both A & B

answer is C.

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Detailed Solution

Concept: Rainwater harvesting is one of the modes of conservation of rainwater through the collection, restoration, and purification of rainwater. In hilly areas, rainwater must be reserved to prevent the loss of water in water streams.

Rain is collected from the roof surfaces and stored in reservoirs, and deep pits.

Some of the water harvesting modes are Naula and Kuhl in hilly areas. Kuhl is the structures that divert water from a natural stream and run at higher elevations than the streams.

Hence, the correct option is C.

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