The thickness of Earth's crust ranges from
A) 5 km to 60 km (3 mi. to 37 mi.).
B) 70 km to 250 km (43 mi. to 155 mi.).
C) the surface to an unknown depth.
D) the surface down to 2900 km (1800 mi.).

Question

Quizplus · Accepted Answer

The thickness of Earth's crust ranges from 5 km to 60 km (3 mi. to 37 mi.) on average, with the thinnest sections beneath the ocean floors and the thickest sections beneath mountain ranges. Option B and D are incorrect as they exceed the upper limit of the crust's thickness while option C is not specific and does not provide any range.

The Thickness of Earth's Crust Ranges from