A spring that shoots jets of hot water and steam into the air is called as __________.

Geothermal energy is the main source of energy in __________.

The hole on earth’s surface from where the steam from the earth comes out is called as __________.

He invented the first geothermal plant.

The process of producing energy by utilizing heat trapped inside the earth surface is called __________. 

The layer of the earth that is responsible for producing geothermal energy.

The Greek word  which means heat.

A special type of liquid that absorbs warmth from earth and bring this heat to the building above during winter. 

The Earth's internal heat source that contributes to geothermal energy.

A horseshoe–shaped area around the Pacific Ocean that experiences a lotof earthquakes and volcanic eruptions