Nasal congestion Nasal congestion is a stuffy nose, and can be accompanied by blocked ears, sore throat, and more. Pleural effusion Pleural effusion is buildup of fluid in the pleura and can cause difficulty breathing or chest pain.
A hydroelectric dam is essentially a mechanical gateway that can control how often, how much, and how fast the water is allowed to passed through. Water above the dam is collected and stored into a reservoir.
The most common type of hydroelectric power plant uses a dam on a river to store water in a reservoir. Water released from the reservoir flows through a turbine, spinning it, which in turn activates a generator to produce electricity. But hydroelectric power doesn't necessarily require a large dam.