Question

Which is the oldest?

A.
Cenozoic

B.
Mesozoic

C.
Paleozoic

D.
Precambrian

Answer 1

@LegendarySadist

Answer 2

https://en.wikipedia.org/wiki/Era_(geology)

Answer 3

i think its c , im not sure

Answer 4

I'm not sure how Precambrian fits into it so give me a sec for that one

Answer 5

me nether lol

Answer 6

do you know some ppl that could help me ?

Answer 7

you could tag them if yu want

Answer 8

@tootzrll @myah

Answer 9

Well from what I've seen, the Precambrian is the collection of A, B, c, and a bunch of other eras going back to the beginning of Earth, 4.6 billion years ago. So I would THINK that the Precambrian is the oldest.

Answer 10

thats wat i thought too ok thank you i'll go with that answer :)

Answer 11

Actually, the Precambrian is just 541 million years ago to 4.5 billion years ago. The other three are from 66 million to million

Answer 12

*541 million where it is blank

Answer 13

oh ok :D thank you

Answer 14

In fact, the first three are regarded as Cambrian, and Precambrian is called as such because it is before Cambrian.

Answer 15

ok