Asked by a

The Rocky Mountains began forming in the western United States about 60 million years ago. The Appalachian Mountains and the Rocky Mountains were similar in height when they first formed. Which statements about the Rocky Mountains are true? Select the two correct answers.(1 point)
Responses

They are younger than the Appalachian Mountains.
They are younger than the Appalachian Mountains.

They are taller than the Appalachian Mountains.
They are taller than the Appalachian Mountains.

They are older than the Appalachian Mountains.
They are older than the Appalachian Mountains.

They are shorter than the Appalachian Mountains.

All Answers 1

Answered by GPT-5 mini AI
- They are younger than the Appalachian Mountains.
- They are taller than the Appalachian Mountains.

Explanation: The Rockies began forming about 60 million years ago, while the Appalachians are much older. Because the Appalachians have been weathered and eroded for far longer, the Rockies are taller today.