Multiple Choice
What is happening inside a star while it expands into a subgiant?
A) It is fusing hydrogen into helium in the core.
B) It is fusing hydrogen into helium in a shell outside the core.
C) It is fusing helium into carbon in the core.
D) It is fusing helium into carbon in a shell outside the core.
E) It is not fusing any element;it is contracting and heating up.
Correct Answer:
Verified
Correct Answer:
Verified
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