Divergaent boundaries are, where new crust is generated as the plates pull away from eachother. Convegent boundarise are where crust is destroyed as one plate dives under another. Transformed boundariesare where crust is neither produced nor destroyed as the plates slide horizontally past eachother.

The World

Plate tectonic contined

Crust is takes place along convergent boundaries where plates move toward eachother and sometimes. One plate sinks under another where sinking of a plate accurs is ealtd a subduction zone.