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Sixty-five million years ago, according to some scientists, an asteroid bigger than mount everest slammed into north america, which, causing plant and animal extinctions, marksthe end of the geologic era
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Sixty-five million years ago, according to some scientists, an asteroid bigger than mount everest slammed into north america, which, causing plant and animal extinctions, marksthe end of the geologic era known as the cretaceous period.

User Ntsh
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That affirmation is correct.


Further information:

It is estimated that about 3/4 of all species where extinct.
This event gave way to the Cenozoic era, which is the one we live in today.

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Happy homework/ study/ exam!
User Carlo Zanocco
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