A Hydro dam is what uses water as electricity and brings it to other peoples homes so this is energy and water is a renewable energy source. This energy is commonly used by where waterfall’s were and is pulled through this gate to loosen the pressure and to make a turbine spin and that’s how water makes electricity. An old style of a turbine is a water wheel that was used along time ago and is still being used.

 If theres sediment iin the water the have a net that catches that plus fish and wood. All dams are not the same like the Hoover dam because it’s the biggest dam ever built plus it was even in the first transformers movie. The hoover dam is the thickest and the most precautious dams.