What event marks the end of both the Paleozoic Era and Mesozoic Era?

A. The ice age

B. The appearance of birds

C. A mass extinction of plants and animals

D. The breakup of supercontinent

Question

What event marks the end of both the Paleozoic Era and Mesozoic Era?

A. The ice age

B. The appearance of birds

C. A mass extinction of plants and animals

D. The breakup of supercontinent

anonymous · Answer

Please help me!!!!!!!! I'll be giving out medals+fan!

anonymous · Answer

This is history right?

anonymous · Answer

No, @jazzpunkish it is actually scientific history but it's still science. Also, the answer @jarchinard: a mass extinction of plants and animals. Cite: ( http://www.answers.com/Q/What_event_marks_the_end_of_both_the_Paleozoic_Era_and_Mesozoic_Era)