Multiple Choice
Why is a 1 solar- mass red giant more luminous than a 1 solar- mass main sequence star?
A) Fusion reactions are producing energy at a greater rate in the red giant.
B) The red giant is more massive.
C) The red giant has a hotter core.
D) The red giant's surface is hotter.
Correct Answer:

Verified
Correct Answer:
Verified
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