What event marks the end of both the paleozoic era and mesozoic era?
a. the ice ageb. the appearance of birds
c. a mass extinction of plants and animalsd. the breakup of a supercontinent

D.The breakup of a super continent.

Explanation:

its not,

A.ice age.

B.The appearance of birds.

or

C.A mass extinction of plants and animals.

Thank you and your welcome.

what are the options mate?

explanation:

not to be rude or anything but, nobody can really answer that if you don't add the options sorry if it came of rude uwu

go up to your profile picture in the top right hand. click on it. then click on edit profile. there you shall see delete account