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.
How Hydroelectric Power Plants Work. By letting the water flow through turbines on their way to the sea, we can harness some of the kinetic energy of water to produce electricity. The flow and head determines the potential energy of a waterfall. The head is the height difference between the water level in the inlet and outlet from the power plant.