Which of the following is the most effective method of water conservation?
A
Rainwater harvesting
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B
Building dams
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C
Using integrated pest management system in agriculture
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D
Treating water in the industries before draining it into water bodies
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Solution
The correct option is ARainwater harvesting Water conservation needs a multipronged effort. Rainwater harvesting is one of the best, though small, efforts taken by each individual to avoid wastage of water.