Which nuclear process powers the Sun in its core?
ACarbon burned with oxygen
BHelium split into hydrogen
CHydrogen fused into helium
DIron fused into nickel
Answer & Solution
Correct answer: C. Hydrogen fused into helium
1. The Sun is a main-sequence star.
2. Its core temperature and density let hydrogen fuse into helium, releasing energy.
3. Splitting helium or burning carbon is not the Sun's energy source.
_Source: Wikipedia, Solar System, Lead section_
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