EVERYDAY SCIENCE

Detailed explanation-1: -Dams are barriers built across a stream, river, or estuary to conserve water for irrigation and various other purposes.

Detailed explanation-2: -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-3: -A dam is a barrier that blocks or constrains the flow of water and raises the water level, forming a reservoir. Dams come in many shapes and sizes. Dams are often used in the generation of electricity the supply of water.

Detailed explanation-4: -A dam is a barrier across flowing water to obstruct, direct or hamper its flow by often creating a reservoir, lake or an impoundment.

Detailed explanation-5: -A weir is a small barrier built across a stream or river to control and raise the water level slightly on the upstream side, essentially a small-scale dam. What is the difference between a weir and a dam? A weir generally allows the water to flow over the crest (which is the top) or sometimes underneath some sections.