<span>Geothermal heat is produced by the core of the Earth itself. </span><span>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. </span><span> Geothermal energy refers to the heat trapped inside the earth.</span>
Answer:
Jet stream
Explanation:
Jet stream is fast moving air or wind that blows horizontally through the upper layers of the troposphere, generally from west to east. It develops where air masses of different temperatures meet. The greater the difference in temperature, the faster the wind speed.
Jet stream has the following characteristics;
- The winds blow from west to east
- The flow often shifts to the north and south.
- They follow the boundaries between hot and cold air.
