4. Geothermal energy is a renewable energy source that harnesses heat from the Earth's interior to generate electricity and provide heating.5. Sequence of Energy Flow in a Geothermal Power PlantHeat from Earth's interior heats water underground.Hot water or steam rises through wells.Steam drives turbines.Turbines activate generators to produce electricity.Used steam is condensed back to water and reinjected into the Earth.6. D. Both B and C: Assuming "B" refers to direct use applications like heating buildings, greenhouses, etc., both methods utilize geothermal heat.7. D. All of the above