How are the Appalachian Mountains different from the Rocky Mountains (physically, not where they are located)? will give brainlest

Compared to the highest peak of the Appalachians of 6,684 feet (Mount Mitchel), the Rockies highest peak is 14,440 feet (Mount Elbert). Alongside that, the Rockies stretch across the country almost twice as long as the Appalachian Mountains (1,500 miles compared to 3,000 miles).

Icant awnser the qustion bc u have the planets not listed