When a star exhausts the hydrogen fuel in its core it
A) expands at a constant temperature
B) expands and heats up
C) expands and cools
D) shrinks and heats up
Correct Answer:
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Q3: Which is the following is the spectra
Q4: The total amount of energy that a
Q5: When a low mass star like our
Q6: When our Sun becomes a red giant
Q7: A star less massive than our Sun
A)
Q8: When a star much more massive than
Q9: Stars spend 90% of their lives
A) fusing
Q10: The luminosity of a star is
A) determined
Q16: What is the least common class of
Q99: Which of the following stars is the
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