To access geothermal energy, wells are dug to reach hot rock or magma.

To access geothermal energy, wells are dug to reach hot rock or magma.

• A. Solar
• B. Geothermal
• C. Wind
• D. Biomass

Answer: (B)

Accessing energy from inside the Earth relies on drilling into hot rocks or magma to bring the underground heat to the surface as steam or hot water. This steam or heat can then drive turbines or be used directly for heating. That tapping method is unique to geothermal energy, which uses the planet’s internal heat rather than energy gathered from the sun, wind, or organic matter. Solar energy uses sunlight, wind energy uses moving air, and biomass uses organic material as fuel, none of which require drilling to reach underground heat. So, the described approach clearly matches geothermal energy.

Accessing energy from inside the Earth relies on drilling into hot rocks or magma to bring the underground heat to the surface as steam or hot water. This steam or heat can then drive turbines or be used directly for heating. That tapping method is unique to geothermal energy, which uses the planet’s internal heat rather than energy gathered from the sun, wind, or organic matter. Solar energy uses sunlight, wind energy uses moving air, and biomass uses organic material as fuel, none of which require drilling to reach underground heat. So, the described approach clearly matches geothermal energy.