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 fern fossil requires the basic conditions for plant growth (soil, sunlight, water/rain) to have existed when the fern was alive 70 million years ago. We cannot confirm the area stayed unchanged, that ferns were the only plants, or that ferns were larger then, as the fossil alone does not provide that evidence.

Answer:

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