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Answer:

option b bawris is not a technique of conservation of water

The correct answer is (b) bawris.

All of the other options, (a) rainwater harvesting, (c) drip irrigation, and (d) leakage of taps, are techniques for conserving water.

Rainwater harvesting involves collecting and storing rainwater for later use, often by installing a system of gutters, pipes, and storage tanks on a building or other structure. This can be an effective way to conserve water, particularly in areas with limited access to a reliable source of clean drinking water.

Drip irrigation involves delivering water directly to the roots of plants through a system of small tubes or hoses. This method can be more efficient than traditional irrigation methods, as it reduces the amount of water lost to evaporation and runoff.

Fixing leaks in taps and other plumbing fixtures can also help to conserve water, as even small leaks can add up to significant amounts of wasted water over time.

Bawris, on the other hand, is not a technique for conserving water. It is a traditional water management system used in some parts of India, in which water is collected and stored in underground tanks or reservoirs known as bawris. This system is used to capture and store rainwater, but it is not specifically designed to conserve water.