Answer:
A. Fossils in bottom layers of rock are likely older than fossils found in top layers of rock.
Step-by-step explanation:
- The law of the faunal succession states that the sedimentary rocks consist of both fossils of flora and fauna and have been identified by the horizontal layering and have occurred on their geologic periods.
- According to the law, the earlier fossil life forms are simpler than that of the recent forms, and the more recent fossils are based on the existing earlier fossils of life thus the bottom layer re older than newer ones.