Multiple Choice
Strong evidence for an original Big Bang,which "created" our universe,comes from
A) the very high flux of 21-cm radio energy,coming from the atomic hydrogen atoms produced in the explosion.
B) the rapid motions of some nearby stars,such as Barnard's star.
C) the amount of gas and dust in the solar neighborhood.
D) a background "glow" of microwaves,with blackbody temperature of about 3 K.
Correct Answer:

Verified
Correct Answer:
Verified
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