At plate boundaries, which process is most closely associated with mountain building?

At plate boundaries, which process is most closely associated with mountain building?

• A. Convergent plate collision
• B. Divergent boundaries far from continents
• C. Transform boundaries
• D. Erosion and weathering at high altitudes

Answer: (A)

Mountain building at plate boundaries primarily results from the collision and compression of tectonic plates. When two continental plates push toward each other, the crust thickens and is uplifted, forming tall mountain belts through deformation, folding, and faulting—as seen in the Himalayas. Divergent boundaries create new crust and rift zones rather than tall ranges; transform boundaries slip sideways with little vertical uplift; erosion and weathering sculpt mountains after they form but do not produce the major uplift. So the key driver of mountain building at plate boundaries is the convergent collision that thickens and raises the crust.

Mountain building at plate boundaries primarily results from the collision and compression of tectonic plates. When two continental plates push toward each other, the crust thickens and is uplifted, forming tall mountain belts through deformation, folding, and faulting—as seen in the Himalayas. Divergent boundaries create new crust and rift zones rather than tall ranges; transform boundaries slip sideways with little vertical uplift; erosion and weathering sculpt mountains after they form but do not produce the major uplift. So the key driver of mountain building at plate boundaries is the convergent collision that thickens and raises the crust.