Multiple Choice
The motion and chemical composition of stars in the outer halo may suggest that
A) it had formed long ago as a product of merger with a small galaxy.
B) it is very young and luminous.
C) it is filled with cosmic rays.
D) its composition is altered by galactic fountains.
E) it does not contain any dark matter.
Correct Answer:
Verified
Correct Answer:
Verified
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