The less the mass of a main-sequence star, the
A) lower its density.
B) cooler it is.
C) brighter it is.
D) shorter its lifetime.
Correct Answer:
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Q35: The distance of a star from the
Q36: White dwarf stars are not
A) comparable in
Q37: In order to determine the mass of
Q38: Auroras consist of
A) colored clouds.
B) comet tails.
C)
Q39: There is a surprisingly small variation among
Q41: At the end of its period in
Q42: A gamma-ray burst is a short, intense
Q43: Brown dwarfs are
A) visible to the naked
Q44: The smallest of the following celestial objects
Q45: Black holes are the remnants of
A) stars
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