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Astronomers believe that cosmic background radiation formed: a. about 1 billion years ago. b. about 1 million years ago. c. shortly after the big bang. d. about 100,000 years ag…

Astronomers believe that cosmic background radiation formed: a. about 1 billion years ago. b. about 1 million years ago. c. shortly after the big bang. d. about 100,000 years ag…
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Astronomers believe that cosmic background radiation formed:

a. about 1 billion years ago.
b. about 1 million years ago.
c. shortly after the big bang.
d. about 100,000 years ago.

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User Punstress
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1 Answer

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The assumption that the cosmic microwave background
is the remnant of the environment at the time of the big bang
or very shortly after it explains very well what we observe now.
So it is the current prevailing theory. "Believe" is not involved.
answered
User Dan Andreasson
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