Here's why:

* Convergent Boundary: This type of boundary occurs when two tectonic plates move towards each other.

* Continental-Continental Collision: This specific type of convergent boundary happens when two continental plates collide. This collision causes the land to buckle and fold, ultimately creating mountain ranges like the Urals.

The Ural Mountains are a prime example of this process. Millions of years ago, the Eurasian Plate and the East European Craton (a piece of ancient continental crust) collided. This collision pushed up the land, creating the Urals.