The Sun produces most of its energy by _____________?
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Answer: A. Nuclear fusion
Explanation
The Sun generates immense energy through nuclear fusion in its hot dense core. Extreme pressure and temperature cause hydrogen atoms to fuse into helium atoms. This mass conversion releases vast amounts of electromagnetic radiation and thermal energy. Nuclear fusion represents the primary power source driving all active main-sequence stars. Core temperatures inside the Sun reach millions of degrees Celsius to sustain reactions. Einstein equation calculates the energy released from mass converted during fusion.
Solar energy drives Earth weather systems, ocean currents, and photosynthetic plant growth. Scientists strive to replicate controlled nuclear fusion on Earth for clean power generation. Solar radiation warms planetary surfaces across the solar system supporting potential life. Nuclear fission involves splitting heavy atomic nuclei rather than combining light isotopes. Burning hydrogen is a chemical reaction that cannot sustain stellar energy outputs. Declining all listed options ignores the correct astrophysical process of stellar fusion.
- Subject
- Everyday Science
- Category
- Everyday Science
- Topic
- —
- Difficulty
- medium
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