Older mountain belts are found where former continent-continent collision occurred making thickened, low density crust like in ________ where erosion has exposed deformed Precambrian rocks from deep in the crust.
A)the Appalachians and the Urals
B)the Mid Atlantic Ridge
C)the Aleutians
D)the Cascades

Question

Quizplus · Accepted Answer

The Appalachians in eastern North America and the Urals in Russia are examples of older mountain belts formed by continent-continent collision, resulting in thickened low density crust. Erosion has exposed deformed Precambrian rocks from deep within the crust in these regions, making them good examples of this type of mountain belt. The other options (B, C, and D) do not fit this description.

Older Mountain Belts Are Found Where Former Continent-Continent Collision Occurred