Question

is the most effective method of water conservation.

• A. Building dams
• B. Pest management
• C. Rainwater harvesting
• D. Sewage treatment

Answer 1

The correct option is C Rainwater harvesting

Rainwater harvesting is the most effective process of collecting, filtering, storing and using rainwater for irrigation and for various other purposes. In areas where there is excess rainfall, the surplus rainwater can be used to recharge ground water.
Building a dam also helps in water conservation, but it has some negative effects associated with it. A lot of trees have to be cut off to build a dam.