Fusion power is energy produced by which process?

• A. Splitting atomic nuclei
• B. Heating water
• C. Fusing atomic nuclei
• D. Magnetic confinement

Answer: (C)

Fusion power comes from the energy released when atomic nuclei merge together. In fusion, light nuclei combine to form a heavier nucleus, and a small amount of mass is converted into a large amount of energy. This is the process that powers the Sun and stars. It is different from fission, where heavy nuclei are split apart to release energy. Magnetic confinement is a technique used to keep the hot fusion plasma in place inside reactors, not the energy-producing step itself. Heating water is a way to turn heat into steam to drive turbines, but it’s the method of electricity generation rather than the nuclear reaction that releases energy.