What do fold and fault block mountains have in common?

Both fold and fault block mountains are formed through tectonic forces that shape the Earth's crust. They result from the movement of tectonic plates, where fold mountains arise from the compression and folding of rock layers, while fault block mountains are created through faults that cause blocks of the Earth's crust to uplift or drop. Both types of mountains can be associated with significant geological activity and often feature rugged terrains. Additionally, they are typically found at convergent and divergent plate boundaries, respectively.