Question

Rahul is constructing a house in Mathura. Of the following methods select those that he can use to ensure rainwater harvesting.

1. A garden
2. Porous tiles in his driveway
3. Rooftop rainwater harvesting
4. Borewell

विकल्प

• (i), (ii), (iii), (iv)

• (i), (ii), (iii)

• (i), (ii), (iv)

• None of them

Answer 1

(i), (ii), (iii)

Explanation:

(i) A garden helps absorb rainwater, reducing runoff. (ii) Porous tiles allow rainwater to seep into the ground. (iii) Rooftop rainwater harvesting collects rain from roofs. (iv) Borewell is not a harvesting method but an extraction tool, so it is not used for rainwater harvesting directly. Hence, Rahul can use a garden, porous tiles, and rooftop rainwater harvesting to ensure rainwater harvesting.