Energy is a form of physical resources, derived primarily from two sources of the winch and earth energy. The energy is divided into two types: renewable energy and non-renewable. Renewable energy: fossil energy and nuclear energy. In fossil energy including coal, oil, natural gas. Non-renewable energy includes 8 types: the Sun, wind, hydro, tidal, ocean waves, geothermal, biomass, bio. If no power, will not happen the metabolic process, could not sustain life
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