Which of the following is NOT a difference between spiral and elliptical galaxies?
A) Spiral galaxies still have ongoing star formation whereas elliptical galaxies do not.
B) Spiral galaxies are sometimes very thin in appearance whereas elliptical galaxies are always round or elliptical.
C) Spiral galaxy disks contain lots of cold gas and dust whereas elliptical galaxies do not.
D) Spiral galaxies tend to have bluish areas whereas elliptical galaxies tend to be all reddish.
E) Spiral galaxies have dark matter halos whereas elliptical galaxies do not.
Correct Answer:
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Q23: The disks of spiral galaxies appear blue
Q24: Stars in elliptical galaxies have velocities that:
A)
Q25: The three-dimensional shape of _ is set
Q26: Active star formation does not occur in
Q27: Two elliptical galaxies have the same apparent
Q29: We classify galaxies by:
A) their true shapes
B)
Q30: The Hubble classification scheme for galaxies sorts
Q31: Elliptical galaxies appear red because:
A) they are
Q32: Which of the following would NOT be
Q33: What type of galaxy is this?
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