EVERYDAY SCIENCE

Detailed explanation-1: -Geothermal energy is heat within the earth. 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, for heating buildings, and for generating electricity.

Detailed explanation-2: -Geothermal energy is heat energy from the earth-Geo (earth) + thermal (heat). Geothermal resources are reservoirs of hot water that exist or are human made at varying temperatures and depths below the Earth’s surface.

Detailed explanation-3: -Geothermal energy is heat that is generated within the Earth. (Geo means “earth, ” and thermal means “heat” in Greek.) It is a renewable resource that can be harvested for human use. About 2, 900 kilometers (1, 800 miles) below the Earth’s crust, or surface, is the hottest part of our planet: the core.

Detailed explanation-4: -Geothermal energy is a key renewable source that covers a significant share of the electricity demand in countries like Iceland, El Salvador, Kenya, the Philippines and New Zealand, and more than 90 % of the heating demand in Iceland.