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.
Hydroelectric power creates no air pollution or greenhouse gas emissions. There are two basic set-ups for hydro: the dam system and the run-of-river system. Dams are used for large capacity hydroelectric plants, while run-of-river systems have small plants with a very minor dam or none at all.The run-of-river system diverts some of the water in a river into a canal that sends the water through turbines at a small generation station.ams are used for large capacity hydroelectric plants, while run-of-river systems have small plants with a very minor dam or none at all. The run-of-river system diverts some of the water in a river into a canal that sends the water through turbines at a small generation station.