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Free_Kalibri [48]
3 years ago
7

Help Please!!!

Biology
1 answer:
Nimfa-mama [501]3 years ago
4 0

Answer:

The cosmic microwave background (CMB) is thought to be leftover radiation from the Big Bang, or the time when the universe began. As the theory goes, when the universe was born it underwent a rapid inflation and expansion. ... The CMB represents the heat left over from the Big Bang.

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