Question

Which of the following statements about check dams are true?

• A. Underground water level and water levels in dams increase due to check dams.
• B. They are used to stop water from rivers and streams from flowing into the sea.
• C. They are used to decrease the flow of water into farmlands.
• D. They are made on slopy farmlands to store rainwater.

Answer 1

Answer: (A), (B)

The correct options are
A Underground water level and water levels in dams increase due to check dams.
B They are used to stop water from rivers and streams from flowing into the sea.

Check dams are concrete walls constructed to stop water from rivers, streams or rivulets from flowing into the sea. The water levels of well and underground water increase when check dams are constructed.