Answer:
Divergent Boundaries -- where new crust is generated as the plates pull away from each other.
Convergent Boundaries -- where crust is destroyed as one plate dives under another.
Transform Boundaries -- where crust is neither produced nor destroyed as the plates slide horizontally past each other.
Explanation:
Convergent boundaries: where two plates are colliding.
Divergent boundaries – where two plates are moving apart.
Transform boundaries – where plates slide passed each other.
