12. which property of fossils allows scientists to determine the relative ages of rock layers? a. fossils…

12. which property of fossils allows scientists to determine the relative ages of rock layers? a. fossils show change over time as species evolve. b. fossils form from the remains of living organisms. c. fossils are usually found only in sedimentary rock. d. fossils can be analyzed to determine their exact age. o a o d o b o c

12. which property of fossils allows scientists to determine the relative ages of rock layers? a. fossils show change over time as species evolve. b. fossils form from the remains of living organisms. c. fossils are usually found only in sedimentary rock. d. fossils can be analyzed to determine their exact age. o a o d o b o c

Answer

Brief Explanations:

Fossils change as species evolve over time. Older rock layers have fossils of more primitive species, while younger layers have more evolved - looking fossils. This allows scientists to determine the relative ages of rock layers. Options B and C do not relate to determining relative ages. Option D is about exact age determination, not relative age.

Answer:

A. Fossils show change over time as species evolve.