Multiple Choice
What is believed to be the origin of giant elliptical galaxies?
A) They grew by devouring smaller galaxies in galactic cannibalism.
B) They have grown continuously since their formation,by accreting intergalactic gas.
C) Collisions between galaxies in the cluster produce a smooth distribution of stars throughout the cluster;these sink by gravity to the cluster center and form giant elliptical galaxies.
D) They formed that way and have remained unchanged ever since.
Correct Answer:
Verified
Correct Answer:
Verified
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