Mountain buildup.
Fault ... ;)
When continental plates collide they form high mountains.
When two continental plates collide they form mountains .
When two continental plates collide,fold mountains are formed.
Fault
When two continental plates collide they buckle up and fold forming mountains.
subduction
When the continental plates collide the oceainc cust gets stuck and eventually evaporates
Mountains
Collision...
sinks
Earthquake