Multiple Choice
When the microwave background radiation was emitted, about how big was the universe?
A) smaller than the head of a pin
B) 1/1,000,000 its current size
C) 1/100,000 its current size
D) 1/1,000 its currents size
E) 1/100 its current size
Correct Answer:
Verified
Correct Answer:
Verified
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