It is relative dating because no scientist can tell the actually time that the layers of rocks where formed or when the fossil began to degrade
the gases that kept different planta is A
Answer:
B. they bring cold , polar winds to the equator
Scientists use fossils to study earth history by identifying the fossil and what era it came from. By knowing what era the fossil came from and what location it was found, scientists can make assumptions about the earth formation at that time.