Question

Limestone can be found at the top of the Himalayas, the highest mountain range in the world. Limestone is a rock that usually forms at the bottom of shallow, warm waters. What does this information show about Earth?

A.
It shows that Earth circulates its minerals so often that they are forced up to the peaks of mountains.

B.
It shows that Earth has not changed much over the years, as limestone still remains on mountain peaks.

C.
It shows that Earth has evolved over time, as areas of land that had once been covered in water no longer are.

D.
It shows that Earth has mostly convergent plate boundaries that push limestone from the ocean floor to the top of mountains.

Answer 1

C

Limestone forms in shallow seas, so finding it on the Himalayas shows that areas once covered by water have been uplifted over time by tectonic processes — evidence that Earth's surface changes (evolves) over time.