Question

By comparing fossils in higher sedimentary layers with fossils in lower sedimentary layers, scientists can learn which of the following?
A. which types of organisms were more common during various time periods
B.the relative age of different species
C.how species have evolved over time

Answer 1

@leenathan

Answer 2

there all right but only have to pick one hmmm

Answer 3

i would pick a

Answer 4

thanks