a dam regulates the water that is holding back of a creek . And this causes water to build up into a pond or lake .
dams help control floodwater
The effect of building river dams on the coastal regions is that they will be able to help control the effects of caused by flooding.
They controlled their floods by creating canals and lakes to help hold the water when a flood occured.
Pros are that dams usually have power generators inside that make electricity from the fast moving waters. Dams also create recreational water areas and help control the water flow to other areas downstream of the dam.
floods
not many of them
Dams
They built dams.
Legal dams
helps control the flow of water
If there is no rain, then a dam does not help.
With dams.