Which type of boundary is responsible for the creation of mountain ranges?

Mountain ranges are primarily formed at convergent boundaries, where two tectonic plates move toward each other. In the case of continental-continental convergence, the collision of two landmasses leads to the uplift of Earth's crust, resulting in the formation of large mountain ranges, such as the Himalayas, which were created by the collision of the Indian and Eurasian plates.

At these convergent boundaries, the immense pressure and force generated by the colliding plates result in dramatic geological activity, including folding, faulting, and uplift of rock layers, all of which contribute to the towering heights of mountain ranges. This process can occur over millions of years, leading to the dramatic topographical features we see today.

In contrast, divergent boundaries are characterized by plates moving apart, which typically leads to the formation of new crust, such as mid-ocean ridges, but not mountain ranges. Transform boundaries involve lateral sliding of plates past each other, which does not contribute to vertical uplift needed for mountain formation. While referring to plate boundaries generally could include all previously mentioned types, it's the specific mechanism at convergent boundaries that directly leads to the creation of mountainous landscapes.