A blue star is ________ our Sun.
A) hotter and smaller than
B) hotter and larger than
C) colder and larger than
D) colder and smaller than
E) approximately the same temperature and size as
Correct Answer:
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Q30: Prior to the formation of the protostar,_.
A)the
Q31: The temperature of a red giant increases
Q32: The first stars formed about 300 million
Q33: Most stars are in this stage of
Q34: What is the main factor that determines
Q36: What is a "main sequence star"?
A)a star
Q37: The final stage for a star which
Q38: The Sun belongs to this class of
Q39: On a Hertzprung-Russell Diagram,our Sun is classified
Q40: A red giant has _.
A)a hydrogen-rich core
B)a
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