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When people want to use water to create electricity they generally build a dam to hold the water back, creating a large lake behind the dam. Why is it necessary to hold the water back with a dam in order to produce electricity?

A)It increases the amount of water available.
B)It increases the force with which the water flows.
C)It forces the water to flow in the desired direction.
D)It makes the water still enough to create electricity.

  • Science - ,

    please help me i need the answer right now!

  • Science - ,

    Al though this is not my main area of expertise, I would say B.

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