Which geological phenomenon is primarily responsible for the formation of mountains?

Tectonic movements

Mountains, those majestic elevations that scratch the sky, are the product of colossal forces at work beneath our feet. Tectonic movements, where the Earth's crustal plates meet, push, and overlap, sculpt the landscape over eons. This process, although imperceptible on a daily basis, continuously shapes the surface of our planet, creating not only mountains but also reshaping continents. Mountain ranges, like the Himalayas or the Alps, bear witness to these tectonic forces, reminding us of the dynamic energy that has animated the Earth since its formation.