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How Do We Know That Matter in the Early Universe

Question 23

Multiple Choice

How do we know that matter in the early universe was extremely smooth (i.e. ,not really lumpy) ?


A) Because the cosmic background radiation is almost completely isotropic
B) Because,at the present time,galaxies are spread almost completely uniformly through the universe
C) Because quasars are spread almost completely uniformly around the sky
D) Because the expansion of the universe is almost completely isotropic

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