Question

on the other side of the dig site, a fern fossil is visible in sandstone that is 70 million years old. what conclusion can you reach given this information? a the area has remained unchanged since the ferns lived there b ferns were the only plants living in the area 70 million years ago c the area must have had soil, sunlight, and rain 70 million years ago d ferns were larger in size 70 million years ago than they are now

Explanation:

A single fern fossil only tells us that ferns could survive in the area 70 million years ago, which required the basic needs for plant life: soil, sunlight, and rain. We cannot conclude the area stayed unchanged, that ferns were the only plants, or that they were larger from just this fossil.

Answer:

C. The area must have had soil, sunlight, and rain 70 million years ago