Exam-style question
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What is the primary cause of a supernova in massive stars?.
- A.Core collapse due to gravitational forces
- B.Fusion of hydrogen into helium
- C.Accretion of matter from a companion star
- D.Expansion of the outer layers
Model answer
What a good answer should say
- Core collapse due to gravitational forces
Explanation
Why this works
A supernova occurs when the core of a massive star collapses under its own gravity after nuclear fusion has ceased, leading to a catastrophic explosion. This process is crucial in understanding stellar evolution.
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