Which of the following statements about galaxies is true?
A) Small galaxies outnumber large galaxies and produce most of the light in the universe.
B) Small galaxies outnumber large galaxies but large galaxies produce most of the light in the universe.
C) There is an approximately equal number of small and large galaxies in the universe and together they each contribute an equal amount of light.
D) Most galaxies in the universe are about the same size as the Milky Way.
E) Galaxies come in a wide variety of shapes and sizes but are all very blue in color.
Correct Answer:
Verified
Q9: The disk component of a spiral galaxy
Q10: What is a standard candle?
A)an object for
Q11: Which types of galaxies have a clearly
Q12: Compared to spiral galaxies,elliptical galaxies are
A)redder and
Q13: Approximately how many stars does a dwarf
Q15: Which types of galaxies have a clearly
Q16: Most large galaxies in the universe are
A)elliptical.
B)spiral
Q17: Suppose that we look at a photograph
Q18: Why are Cepheid variables important?
A)Cepheid variables are
Q19: Which of the following types of galaxies
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