Question

The thickness of the earth's crust varies. The crust beneath mountains is thicker and extends up to

Group of answer choices:

3 miles or 5 kilometers.
43 miles or 70 kilometers.
43 kilometers or 70 miles.
19 miles or 30 kilometers.

Answer 1

30-50 kilometers are the average thickness of the earths crust beneath mountains. So the closest answer to that would be 43 kilometers so the answer would be 43 kilometers or 70 miles.