Question

what is the mountain range to the west of the great plains?
cascade mountains
sierra nevada mountains
appalachian mountains
rocky mountains

Explanation:

The Great Plains are a large flat - land area in North America. The Rocky Mountains are located to the west of the Great Plains. The Cascade Mountains are further west along the Pacific coast, the Sierra Nevada Mountains are in California, and the Appalachian Mountains are in the eastern United States.

Answer:

D. Rocky Mountains