Multiple Choice
A solar- mass star will evolve off the main sequence when
A) it completely runs out of hydrogen.
B) it explodes as a violent nova.
C) it builds up a core of inert helium.
D) it expels a planetary nebula to cool off and release radiation.
E) it loses all its neutrinos, so fusion must cease.
Correct Answer:

Verified
Correct Answer:
Verified
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