Multiple Choice
The CMB is a snapshot of the radiation in the universe at a redshift of z 1,000 when the universe was:
A) 1,000 times smaller than it is today
B) 10 times smaller than it is today
C) two times smaller than it is today
D) the same size as it is today
E) 10 times larger than it is today
Correct Answer:

Verified
Correct Answer:
Verified
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