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    Astronomy Today Study Set 1
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    Exam 27: The Early Universe: Toward the Beginning of Time
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    Before About 4 Billion Years Ago the Universe Was
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Before About 4 Billion Years Ago the Universe Was

Question 82

Question 82

Multiple Choice

Before about 4 billion years ago the universe was:


A) radiation dominated.
B) quark dominated.
C) lepton dominated.
D) matter dominated.
E) dark energy dominated.

Correct Answer:

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