How are the application mountains and the Rolling Hills of the Piedmont formed?

The application mountains and the Rolling Hills of the Piedmont are formed primarily through geological processes such as erosion and tectonic activity. The application mountains, like the Appalachians, were created by the collision of tectonic plates leading to uplift and folding of the Earth's crust. Over time, erosion has worn down these mountains, while the Rolling Hills of the Piedmont are characterized by the softer, sedimentary layers that result from the erosion of the surrounding higher terrain, creating a more gently sloping landscape. These features reflect the complex interplay of geological forces over millions of years.