State the advantages of constructing dams across the rivers.

Dams are built to control water through the placement of a blockage of earth, rock, and concrete across a stream or river.


Dams are usually constructed to store water in a reservoir, which is then used for a variety of applications such as irrigation and municipal water supplies.


Reservoir water can also be directed to flow through hydraulic turbines, producing electric power for use in homes and industries.


Hydroelectric power is considered a renewable source of energy because the reservoir water that is used to generate electricity is continuously replenished.


A dam using locks and canals, such as the series of locks on the canal, water flows through a human-made water route that must overcome elevation differences.


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