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Derived from the Sun

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  • Is it true that geothermal energy comes from inside the Earth?

  • It is not a correct statement: Geothermal energy comes from the heat within the earth. The word geothermal comes from the Greek words geo, meaning earth, and therme, meaning heat. People around the world use geothermal energy to produce electricity, to heat buildings and greenhouses, and for other purposes.

  • What is the origin of the word geothermal?

  • The word geothermal comes from the Greek words geo (earth) and therme (heat). Geothermal energy is a renewable energy source because heat is continuously produced inside the earth. People use geothermal heat for bathing, to heat buildings, and to generate electricity.

  • What is geothermal energy used for?

  • Geothermal energy heats water and rocks, used directly as a heat source or to produce electricity. Heating through the naturally occurring 鈥渧ents.鈥?Fumaroles (steam vents associated with seismic activity), geysers, and hot springs are the most frequently used sources.

  • Is geothermal energy renewable or nonrenewable?

  • Geothermal energy is a renewable resource. The Earth has been emitting heat for about 4.5 billion years, and will continue to emit heat for billions of years into the future because of the ongoing radioactive decay in the Earth鈥檚 core.

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