Question

A team of archaeologists excavating a sedimentary rock layer come across some primitive hunting tools used by early humans. As the dig progresses, they unearth the fossilized remains of a dinosaur from another layer of the sedimentary rock. Why do these discoveries indicate that the rocks were formed over millions of years?

Answer 1

C) Dinosaurs became extinct millions of years before humans appeared.

Step-by-step explanation:

Dinosaurs became extinct millions of years before humans evolved. So the sedimentary rock that contained the hunting tools and the dinosaur fossil would have formed over a period of millions of years.