By providing stored water for irrigation.
Navajo dam
Aswan High Dam
high dam
The Aswan High Dam, completed in 1970, diverts the Nile River for use in agriculture.
It takes approximately three years of hard work.
If there is no rain, then a dam does not help.
What help?
It's relatively clean, as there is "no waste," which can be debated. It can increase power on demand pretty readily provided sufficient water behind the dam. A well managed system can help reduce erosion and control flooding. Construction and maintenance of the dam helps create jobs.
Due to the that the pressure exerted by a liquid increase with its depth. Thus as depth increase, more and more pressure is exert by water on the wall of dam. A thick wall is required to withstand a great pressure, therefore, the wall of the dam is made with thickness increasing towards the base
Potential energy.
It's relatively clean, as there is "no waste," which can be debated. It can increase power on demand pretty readily provided sufficient water behind the dam. A well managed system can help reduce erosion and control flooding. Construction and maintenance of the dam helps create jobs.
Pakistan is a dry country and needs lots of water which kalabagh dam can help