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What is the main purpose of rainwater harvesting?

Answer and explanation

Correct answer: Conservation of water

Rainwater harvesting is the deliberate collection and storage of rainwater from roofs, paved surfaces, or open catchments for later use or groundwater recharge. Its main purpose is water conservation: it reduces dependence on external supplies, supports domestic or agricultural needs during dry periods, and can help replenish local aquifers when designed properly. Option A is correct. Increasing air pollution, cutting forests, and removing soil are harmful activities, not objectives of harvesting rainwater. A harvesting system may also reduce surface runoff and local flooding, but its central purpose remains saving and managing water. The effectiveness of the method depends on clean collection surfaces, suitable storage, and regular maintenance.

Related tags

Rainwater HarvestingWater ConservationGroundwater RechargeWater ManagementWater ResourcesGeographyClass 12 Mcq

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