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Astronomy/Astrophysics Questionnaire Flashcards | StudBud
Astronomy/Astrophysics Questionnaire
1 / 67
When does a star leave the main sequence?
A
When it turns into a black dwarf.
B
When it turns into a planetary nebula.
C
When it runs out of hydrogen to fuse.
D
When it runs out of helium to fuse.
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