Answer 1
Well, not really, the deformation is just the result of what actually formed the mountains. They were formed by a continent-continent convergence 300 million years ago. Since both plates have crusts of equal densities, they don’t even shrink, but the crust is pushed up, creating complex mountain ranges, which have folded rock units.
answer 2
Appalachia is much older than the Rocky Mountain variety. Thus, Appalachia was exposed to the weather for many more years, causing it to crumble over time. The Appalachians are smaller and more rounded, alternately taking a triangular shape, or a good delineated “height” as can be seen at the top of the Rocky Mountains…
answer 3
Yes, as the first responder said. An interesting thing to note is that the small mountain range located today in Morocco (African continent) was probably a small part of the southern Appalachians of the North American continent. When the North American and African continents began to separate, this small mountain range took off with the African continent.
answer 4
Yeah. The Appalachian continental plate collided with the North African continental plate causing the plate to bend upward.