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The Big Bang Theory States that the universe began with a gigantic explosion a.)4.4 billion years ago b.)13-15 bibllion years ago c.)50 billion years ago d.)100 billion years ago

Respuesta :

Nanaprincess
The big bang theory states that the universe began with a gigantic explosion 10 to 20 billion years ago. 
Sylph
The answer should be B

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