1. How could the Great Plains have transformed into the Rocky Mountains? 2. How could the Rocky Mountains have transformed into the Great Plains?

ans 1The plate motion that occurred near the Great Plains and Rocky Mountains uplifted igneous rock that formed underground. This rock eventually eroded and its sediment formed sedimentary rock in the Great Plains. ... Uplift moves rock upward, toward Earth's surface.

ans 1The plate motion that occurred near the Great Plains and Rocky Mountains uplifted igneous rock that formed underground. This rock eventually eroded and its sediment formed sedimentary rock in the Great Plains. ... Uplift moves rock upward, toward Earth's surface.

With the rise of the Rocky Mountains to the west, erosion and Cenozoic-era volcanism produced sediment that was transported and deposited throughout the Great Plains. Gravel, sand, and mud dominate the region's surface, with progressively younger sediment located farther from the mountain chain.