Science, asked by sanu7678, 11 months ago

what are Dam how do they help in making water available all through the year​

Answers

Answered by WSGxLonewolf
15

Dams are artificial walls made on rivers. Water can be stored on the other side of the wall in a reservoir. They increase the water flow and help in making water available all through the year.

Answered by marishthangaraj
1

Dams making water available all through the year​

Explanation:

  • A dam is a barrier across flowing water that obstructs, directs or retards the flow of water, often creating a reservoir, lake. Dams are constructed for various purposes like hydroelectricity, water storage, monitoring the river course, etc.
  • Dams and reservoirs are primarily used as water storage systems and additional benefits of hydroelectricity.
  • River beds and streams are usually fed by monsoons or rainy seasons. During rainy season, rivers will be flooded with fresh water. This water is stored in dams to their Full Reservoir Level (FRL) and excess water is released through the sluice gates to a downstream dam or directly to the ocean.
  • Once the rainy season ends, flow to the rivers dwindle and not sufficient enough for irrigation and drinking purpose. Water stored in dams are released at such times through hydroelectric power generation units which produce electric power. Moreover canals are fed by dams which divert river water from its usual course and made to irrigate barren lands. This helps in increasing the cultivated landscape too.
  • Dams and reservoirs are the backbone of irrigation and hydroelectric projects of any river stream in world!

Learn more about dam

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