Question

question 17
this mountain range stretches from maine to georgia. it is the oldest mountain range in the united states. we can tell it’s very old because it’s peaks have been eroded to rounded off tops.
a appalachian mountains
x b rocky mountains
c sierra nevada mountains
d cascade mountains

Explanation:

The described mountain range spans from Maine to Georgia, is the oldest in the U.S., and has eroded, rounded peaks, which matches the Appalachian Mountains.

Answer:

a. Appalachian Mountains