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.
A: Hydroelectric dams produce electricity by using falling water to spin a turbine that is connected to a generator through a large metal shaft. The power that the generator receives from the turbine is converted into electricity and then transferred to homes and other structures through power lines.