Question

1. draw a line to match the words below to their meanings.

fuel
gasses that trap heat in the earths atmosphere.
generator
a substance that stores energy.
turbine
a device that turns when it is pushed.
greenhouse gas
a machine that uses rotational energy to create electricity.

1. where does the fuel for geothermal energy originate?

a. the fuel for geothermal energy originates in the earths mantle and core.
b. the fuel for geothermal energy originates in the earths crust.

Explanation:

• Fuel: By definition, fuel is a substance that stores energy.
• Generator: A generator is a machine that uses rotational energy to create electricity.
• Turbine: A turbine is a device that turns when it is pushed.
• Greenhouse gas: Greenhouse gases are gasses that trap heat in the Earth's atmosphere.
• For the second question, geothermal energy comes from the heat within the Earth. The Earth's mantle and core are extremely hot, and this heat is what is utilized in geothermal energy systems. The crust is relatively cooler compared to the mantle and core and is not the source of the "fuel" (heat) for geothermal energy.

Answer:

1.

• fuel: A substance that stores energy.
• generator: A machine that uses rotational energy to create electricity.
• turbine: A device that turns when it is pushed.
• greenhouse gas: Gasses that trap heat in the Earth's atmosphere.

1. a. The fuel for geothermal energy originates in the Earth's mantle and core.