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1 vote
The mass extinction at the end of the Mesozoic Era was caused by ______.

2 Answers

6 votes
by an astroid that collided with earth to cause the Mesozoic eras extinction
answered
User Mateusz Nowak
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8.0k points
2 votes
The mass extinction at the end of the Mesozoic Era was caused by an asteroid that had collided with the earth.
answered
User Mikecancook
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7.8k points
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