● Dams are built to control water through the placement of a blockage of earth, rock, and concrete across a stream or river.
● Dams are usually constructed to store water in a reservoir, which is then used for a variety of applications such as irrigation and municipal water supplies.
● Reservoir water can also be directed to flow through hydraulic turbines, producing electric power for use in homes and industries.
● Hydroelectric power is considered a renewable source of energy because the reservoir water that is used to generate electricity is continuously replenished.
● A dam using locks and canals, such as the series of locks on the canal, water flows through a human-made water route that must overcome elevation differences.
