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29 votes
29 votes
After the Big Bang occurred, scientists think that the universe.

A) Started to expand.

B) Grew less dense.

C) Began to cool.

D) All of these.

User Vkumar
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2.8k points

1 Answer

11 votes
11 votes
I think D is the answer.
User Arne De Smedt
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3.7k points