Respuesta :
Answer:
Both rock layers formed because of volcanic activity.
Explanation:
In this case, that's the most appropriate reason which would be seen by the scientists.
hope it helps!
The presence of the same index of fossils found in the rocks layers of the ocean floor indicates of
- The rick layers are about the same time or the relative age of the formation is the same.
- As the sedimentary rocks are those that consist of fossils found arranged with layers these fossils store the geologic records of the time.
Hence the option A is correct.
Learn more about the same index fossil are found in rock layers across the ocean floor.
brainly.com/question/11560919.