Question

15 multiple choice 1 point fossils found closer to the surface of the ground are generally younger and simpler older and more complex younger and more complex older and simpler

Explanation:

Fossils are formed over time. Newer rock layers are deposited on top of older ones. So, fossils in the upper - closer to the surface - layers are generally younger. As evolution progresses, life forms tend to become more complex over time. Younger fossils thus often represent more complex organisms.

Answer:

C. younger and more complex