What happened at the end of the Mesozoic era, but did not happen at the end
of the Paleozoic era?
A. An ice age occurred.
B. There were major asteroid impacts.
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C. A supercontinent broke up.
D. There were mass extinctions.

Respuesta :

Answer: B) asteroids hit the Earth in the Mesozoic, but not the Paleozoic.  

Explanation:

B. It’s B because asteroids killed the dinosaurs and that’s what era they were in