because of difference in density or composition
because they all collide
Several plate boundaries compose the Ring of Fire, but the main boundaries that surround the Ring of Fire are ocean-continent convergent boundaries and ocean-ocean convergent boundaries.
Convergent.
An example of convergent plate boundaries on earth is the Himalayas. :)
convergent boundaries collide but divergent boundaries move away from each other.
a mountain forms
Convergent Boundaries
The Convergent Boundaries are classifid according to the compass direction of movement of the plates.
Convergent boundaries.
The names of the three different plate boundaries are: Convergent, Divergent, and Transform.
Convergent boundary mountains are mountains formed by convergent boundaries.
Convergent boundaries that produce maintains are called subduction zones.