Question

which two layers are approximately the same age? core sample 1 core sample 2

Explanation:

To determine which two layers are approximately the same age, we analyze the core samples. In core sample 1, the bottom layer (with orange fossils) and in core sample 2, the middle layer (with orange fossils) have the same type of fossils. Fossils can be used as index fossils to indicate similar time periods, so these layers (the bottom layer of core sample 1 and the middle layer of core sample 2) are approximately the same age.

Answer:

The bottom layer of core sample 1 (with orange fossils) and the middle layer of core sample 2 (with orange fossils) are approximately the same age.