Which type of energy harnesses the Earth's internal heat for power generation?

Geothermal energy is the type of energy that harnesses the Earth's internal heat for power generation. This energy is derived from the natural heat present beneath the Earth's surface, which is a result of the decay of radioactive materials and the residual heat from the planet's formation. By tapping into this geothermal heat, it is possible to produce steam that can drive turbines to generate electricity.

Geothermal energy is considered a sustainable and reliable source of energy, as it can provide a continuous supply of power and is less dependent on weather conditions compared to other renewable sources. Additionally, it has a relatively low environmental impact when managed correctly, making it a viable option for reducing greenhouse gas emissions and providing clean energy.

The other energy types mentioned, such as solar energy, hydroelectric energy, and nuclear energy, operate based on different principles and sources, such as sunlight, flowing water, and nuclear reactions, respectively, rather than the Earth's internal heat.