What is the "safety valve" that prevents normal (nondegenerate) stars from self-destructing?
A) If the pressure rises, the volume occupied by the matter decreases, reducing the nuclear reaction rate.
B) If a part of a star where thermonuclear reactions are occurring is suddenly heated, it expands and cools.
C) If thermonuclear reactions proceed too quickly, the star runs out of fuel before anything drastic happens.
D) If the temperature rises, the thermonuclear reaction rate increases to match it.
Correct Answer:
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