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.
Hydropower uses the energy of moving water for a variety of useful applications. Hydroelectricity generates electricity by harnessing the gravitational force of falling water.In 2006, hydroelectricity supplied around 20% of the worldâs electricity. Most hydroelectric power stations use water held in dams to drive turbines and generators which turn mechanical energy into electrical energy.The largest hydroelectric power station in the world is the Three Gorges Dam in China.A small number of countries, including Norway, Canada, Brazil, New Zealand, Paraguay, Venezuela and Switzerland, produce the majority of their electricity through hydropower.ydropower uses the energy of moving water for a variety of useful applications. Hydroelectricity generates electricity by harnessing the gravitational force of falling water.