Renewable energy facts

Renewable energy is energy generated from natural resources - such as sunlight, wind, rain, tides, and geothermal heat - which are renewable (naturally replenished).Renewable energy sources are used from ancient history: In 200 B.C., people in China and the Middle East used windmills to pump water and grind grain. Also, old Romans were among the first to use geothermal energy to heat houses.Until

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