Stars are mostly made of
A) hydrogen and helium
B) pure hydrogen
C) carbon, hydrogen, oxygen and nitrogen
D) an equal mixture of all elements
Correct Answer:
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Q3: High mass stars are much less common
Q4: When a star finally runs out of
Q5: The intrinsic brightness of a star is
Q6: M-type stars in our galaxy are
A) fairly
Q7: A star less massive than our Sun
A)
Q9: The presence of elements heavier than helium
Q10: What is the most common class of
Q11: What is the minimum possible mass for
Q12: The most important property of a star
Q13: The color of a star is a
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