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Physics, 09.07.2019 03:00 KAMOO3X

Approximately how old is the earth? a) 4.5 trillion years b) 4.5 million years c) 4.5 billion years d) 4.5 thousand years

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Approximately how old is the earth? a) 4.5 trillion years b) 4.5 million years c) 4.5 billion years...
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