Question

What can you conclude about fossil by looking at the layers of rock?

The exact age of the fossil
The fossils in the lower layers are older than the fossils in the upper layers.
There is no difference in age between the different layers of rock
The fossils in the upper layers are the ancestors of the fossils in the lower layers.

Answer 1

B. The fossils in the lower layers are older than the fossils in the upper layers. 

Answer 2

The fossils in the lower layers are older than the fossils in the upper layers.