The convergent boundaries are where two plates collide. The more dense plate sinks and the less dense plat rises causing a trench and other things.
DIVERGENT PLATE BOUNDARIES
Divergent plate boundaries forms where two plates separate. This is where lava erupts, cools, and forms new oceanic crust. If occurred in the middle of a continent, a rift valley will form.
Transform Plate Boundaries
A transform plate boundary is where two plates slide past each other. They can get stuck when they are moving past each other, and when this happens earthquakes come.