Question

The Appalachian Mountains were much taller when they first formed, and have since weathered and eroded
TRUE
FALSE

Answers

GPT-4o mini
TRUE

The Appalachian Mountains were indeed much taller when they first formed. They were originally formed around 480 million years ago during the Ordovician Period and have undergone significant weathering and erosion over millions of years, resulting in their current lower elevations.