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What is the primary source of geothermal energy?

underground water that is held in the soil and in pervious rocks

a segment of DNA that is involved in producing a polypeptide chain

a mature sexual reproductive cell having a single set of unpaired chromosomes

the energy produced by heat within the earth

The primary source of geothermal energy is the heat produced within the Earth. This energy originates from several factors, including the decay of radioactive materials, residual heat from the planet's formation, and heat generated from tectonic processes. The Earth's core remains extremely hot, and this heat can migrate to the surface, where it can be harnessed for various applications such as electricity generation and direct heating.

Understanding this concept is crucial, as geothermal energy represents a sustainable and environmentally friendly energy source. It can significantly reduce reliance on fossil fuels and help combat climate change. The other options relate to biological processes or cellular structures and do not pertain to geothermal energy, which indicates that they are not relevant to the question at hand.

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