Hydropower is electricity generated by harnessing the energy of moving water. This kind or energy provides almost one fifth of the world's electricity.
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The most important use of liquid crystals is in displays because the molecules of a liquid crystal can control the amount, color, and direction of vibration of the light that passes through them. hope that helps love!
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the unit for electric current is ampere.
Fluorine, chlorine, iodine (the halogens), oxygen, sulphur, hydrogen
