Power is divided into two major categories, namely, energy use and waste of energy or power or fossil fuel, oil, as well as rock, sand, including oil. Coal and natural gas, called a timeout, it comes not to use substitutes. The energy they usually live underground If you don't dig it, now keep sons used to have in the future. Maybe, it's called energy and renewable energy sources, energy type that uses a revolving year. as there are no clean energy and environmental impacts referred to renewable energy. Renewable energy sources in the production of electricity from wind power contained more solar energy. Energy from water. Water energy Wave power Heat and power biomass world, etc.
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