Question

It is important to make small check dams across the flooded gullies because they-
(i) hold water for irrigation.
(ii) hold water and prevent soil erosion.
(iii) recharge ground water.

(iv) hold water permanently.

Select the correct options from the above stated reasons-

• A. (i) and (iv)
• B. (ii) and (iii)
• C. (iii) and (iv)
• D. (ii) and (iv)

Answer 1

The correct option is B (ii) and (iii)

A check dam is a small, often temporary, dam constructed across a swale, drainage ditch, or waterway to counteract erosion by reducing water flow velocity.