Geothermal energy
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Geothermal energy is heat from within the earth. People can the steam and hot water produced inside the earth to heat buildings or generate electricity. Geothermal energy is a renewable energy source because the water is replenished by rainfall and the heat is continuously produced inside the earth.
Links
- Geothermal Energy - Energy Kid's Page, US Department of Energy
- Africa's Rift Valley: Geothermal Gold Mine