Biology, 29.08.2019 02:30 Anthonyc123
The universe began about 14 billion years ago and has been expanding and cooling ever since. what does this statement most completely describe?
a. the doppler effect
b. the big bang theory
c. cosmic background radiation
d. light years
some one me quick 15
Answers: 2
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The universe began about 14 billion years ago and has been expanding and cooling ever since. what do...
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