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Hydropower

Hydropower harnesses the energy of moving or falling water. The term refers to a number of systems in which the water drives a turbine or waterwheel placed in streams or waterfalls.

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Urethra

... 8 inches (200 mm) long and opens at the end of the penis. Medical problems of the urethra: Hypospadias[?] is a form of abnormal development of the urethra in ...