Big Bang was an explosion that occurred ? A. 10 Billion years ago B. 15 Billion years ago (Answer) C. 20 Billion years ago D. 25 Billion years ago

Big Bang was an explosion that occurred ?

A. 10 Billion years ago

B. 15 Billion years ago (Answer)

C. 20 Billion years ago

D. 25 Billion years ago
by

1 Answer

Answer :

B. 15 Billion years ago (Answer)
by

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