INDIAN GEOGRAPHY

Detailed explanation-1: -A dam is a structure built across a river or stream to hold back water. People have used different materials to build dams over the centuries. Ancient dam builders used natural materials such as rocks or clay. Modern-day dam builders often use concrete. Manmade dams create artificial lakes called reservoirs.

Detailed explanation-2: -A dam is a barrier that impounds water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for such activities as irrigation, human consumption, industrial use, aquaculture, and navigability. Hydropower is often used in conjunction with dams to generate electricity.

Detailed explanation-3: -A dam is a structure whose building takes place across a river or stream. Holding back water is the main purpose of the dam. The use of different materials has taken place to build dams over the centuries. In the ancient era, dam builders made use of natural materials like clay or rocks for building a dam.

Detailed explanation-4: -Dams are large water-holding structures built across rivers to control water flow. Many dams have been built across the major rivers to act as reservoirs for river water.