Why are galaxy collisions of interest?
A) Collisions and mergers play an important role in shaping galaxies.
B) Collisions have a strong effect on the evolution of stars.
C) Collisions are extremely rare.
D) Collisions generate hundreds of black holes.
Correct Answer:
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Q21: An encounter in which a large galaxy
Q22: What is the most likely outcome after
Q23: _ form when galaxies collide and _.
A)
Q24: What is the most likely outcome after
Q25: When two galaxies collide, what happens to
Q27: Most of the Seyfert galaxies are _.
A)
Q28: What type of object is believed to
Q29: Which of the following are active galaxies?
A)
Q30: Seyfert galaxies are_.
A) bright elliptical galaxies
B) small
Q31: Which of the following statements about quasars
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