What can be said about rock layers that contain the same index fossils but are found in different areas of the world? a they formed during the same period of time. b they formed during different periods of time. c they are still forming and are not yet finished. d they were formed at the same location but one was moved.

A They formed during the same period of time.

D They were formed at the same location but one was moved.

Explanation:

Fossils that are formed at the same period of time will be the same , because that will mean those organism were present at the same time on those separate locations.

But it can also mean they were formed in the same location and moved apart .

During the gondwana break there was separation of the planets plates and this may have resulted to some fossils found in different areas even though they were initially formed in the same location.

the boundarys like convergent divergent and transform it causes subduction