Stars at the lower end of the main sequence have
A) high temperatures and large masses.
B) high temperatures and small masses.
C) low temperatures and large masses.
D) low temperatures and small masses.
Correct Answer:
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Q19: Which of the following can appear as
Q20: Advantages of large reflecting telescopes include their
Q21: White dwarfs
A) are young stars.
B) are old
Q22: The majority of main-sequence stars are
A) blue.
B)
Q23: The color of a relatively hot star
Q25: The sun will remain its present size
Q26: In the HR diagram, most stars are
A)
Q27: The size of a star can be
Q28: The star nearest to the sun is
Q29: Cepheid variable stars
A) are very bright, easily
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