31) The principal copper deposits of India lie in which of the following places?
Answer is:
Hazaribag and Singbhum of Bihar
Related Geography MCQ Set - 7 with Answers
Answer is:
The North Atlantic Drift flows past the coast
Answer is:
Desert Development Programme (DDP)
Answer is:
Mahanadi
Explanation:
A dam is constructed to store large quantity of water, which is used for the purpose of irrigation and power generation. A dam constructed with earth is called an earthen dam whereas a dam constructed with cement concrete is called masonry dam or gravity dam.
A dam may be of any cross- section, but the dams of trapezoidal cross-section are very popular these days. A retaining wall is generally constructed to retain earth in hilly areas.