GEOLOGY

Detailed explanation-1: -Dams are structural barriers built to obstruct or control the flow of water in rivers and streams. They are designed to serve two broad functions.

Detailed explanation-2: -A dam is a structure built across a stream or river to hold water back. Dams can be used to store water, control flooding, and generate electricity.

Detailed explanation-3: -Engineers control the amount of water let through the dam. The process used to control this flow of water is called the intake system.

Detailed explanation-4: -The wall. between a spillway or gate structure and the embankment can also be referred to as an abutment. (

Detailed explanation-5: -A weir is a small barrier built across a stream or river to raise the water level slightly on the upstream side; essentially a small-scale dam. Weirs allow water to pool behind them, while allowing water to flow steadily over top of the weir.