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Renewable Energy What is Renewable Energy? Renewable energy means it comes from a source that's constantly renewed - the wind keeps blowing, the sun keeps shining, and the Earth keeps heating underground rocks. This energy will be around for as long as the Earth is, so we don't have to worry about running out of it. And renewable energy sources are also usually less pollutant. There are seven sources of renewable energy: * Solar Energy * Biomass * Wind Energy * Wave Energy * Hydro-electric Energy * Tidal Energy * Geothermal Energy Solar Energy Solar energy is energy taken from the sun's rays. The amount of energy that falls from the sun each day can reach the amount of energy used in total around the world per year. The sun's rays have a low energy density so large panels and collecting devices must be used to gather the energy and convert it into electricity. Solar heating Have you ever sat in a...

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