Question

Explain briefly where geothermal energy comes from.

Answer 1

Geothermal heat is produced by the core of the Earth itself.  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.  Geothermal energy refers to the heat trapped inside the earth.