How are the Appalachian Mountains different from the Rocky Mountains?

A. The Appalachians run east and west, and the Rockies run north to south.
B. The Appalachians are in the west, and the Rockies are in the east.
C. The Appalachians are taller than the Rockies.
D. The Appalachians are lower, and the Rockies are taller.

The Appalachian Mountains run along the eastern coast of the United States in a north-south direction, while the Rocky Mountains span from Alaska to New Mexico in a predominantly north-south direction.

Explanation:

The Appalachian Mountains and the Rocky Mountains are two distinct mountain ranges in North America.

The Appalachian Mountains run primarily along the eastern coast of the United States, from Alabama in the south to Maine in the north. They generally run in a north-south direction, parallel to the Atlantic Ocean.

On the other hand, the Rocky Mountains are located in western North America, running from Alaska down to New Mexico. They extend in a predominantly north-south direction, passing through several states including Montana, Wyoming, Colorado, and New Mexico.

One key difference is the age of the two mountain ranges. The Appalachians are much older, with their formation dating back to around 480 million years ago. In contrast, the Rockies are relatively young, forming about 80 million years ago during the Laramide orogeny.

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