Question

A geologist identifies the identical index fossils in rock layers from two different areas. Which conclusion is best supported by this discovery?
The deposition rate of the two rock layers was identical
The fossil organism evolved independently in the two separate areas
The two rock layers were deposited at approximately the same time
The index fossil will also occur in sediment deposited on top of these rock layers.

Answer 1

https://zenodo.org/communities/verahora21/?page=1&size=20

Answer 2

The deposition rate of the two rock layers was identical.

Answer 3

we can cross out b and d cause if they evolved independently they wouldn't be similar and you dont find fossils in top rock layers those were meant to be more recent

Answer 4

Question: A geologist identifies identical index fossils in rock layers from two different areas. Which conclusion is best supported by this discovery?


A.)
The deposition rate of the two rock layers was identical
(Which makes this one correct, because they were found at the same depth.

X.)
The fossil organism evolved independently in the two separate areas
(Incorrect, due to the fact of it says "Independently")

X.)
The two rock layers were deposited at approximately the same time
(Possibly, but things can change those like earthquakes and natural disasters, which make this choice incorrect)

X.)
The index fossil will also occur in sediment deposited on top of these rock layers.
(Incorrect as it was from millions of years ago, so it should not be on top.)

Let me know if anything else is needed.

ℂ𝕣𝕖𝕖𝕕