Answer:
Compression due to plate tectonic convergent motion
Explanation:
Folds and faults are formed naturally on land surfaces. Folds are the twists and the bends in the rock surfaces while faults are the planes of detachment which results when the rocks on the either side of displacement slips past one another.
The folds and faults in the Valley and Ridge province are formed due to the plate tectonic convergent movement which occurred during the formation of the Pangea super continent.
