33. A system of underground pipes heated by Earth's hot interior creates steam from water, which generates heat for a building. Which type of energy source is harnessed in this scenario?
Answer: C
Geothermal energy is harnessed in this scenario.
The system described utilizes underground pipes heated by the Earth's hot interior to generate steam from water. This process is characteristic of geothermal energy, which harnesses the Earth's internal heat for practical use.
A) Biomass
Biomass refers to energy produced from organic materials, such as plant and animal waste. In this scenario, no organic materials are involved, and instead, the focus is on heat derived from the Earth's interior, making this option incorrect.
B) Tidal power
Tidal power generates energy from the movement of tides and ocean currents. This method relies on water's gravitational interaction with the moon and sun, and does not involve underground heating or steam generation from the Earth's interior, therefore it is not applicable in this context.
C) Geothermal
Geothermal energy is produced by tapping into the Earth's internal heat, which is precisely what the described system does. The use of underground pipes to heat water and generate steam clearly aligns with the definition of geothermal energy, making this the correct answer.
D) Hydropower
Hydropower generates energy from the movement of water, typically through dams or flowing rivers. While water is involved in the scenario, the key mechanism is the heat from the Earth's interior rather than the kinetic energy of flowing water, thus making this option incorrect.
Conclusion
Geothermal energy is the only option that accurately describes the process of using the Earth's internal heat to create steam for heating purposes. The other options—biomass, tidal power, and hydropower—do not relate to the use of underground heat and therefore cannot be considered correct in this context.