Multiple Choice
According to current understanding,what is a quasar?
A) an active galactic nucleus that is particularly bright
B) a very large galaxy thought to be formed by the merger of several smaller galaxies,typically found in the center of a galaxy cluster
C) any object with an extremely large redshift is called a quasar
D) a galaxy with an unusually high rate of star formation
Correct Answer:
Verified
Correct Answer:
Verified
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