Answer:
The theory of plate tectonics includes
✔ three
types of plate boundaries.
A
✔ divergent
boundary is formed when plates move away from each other.
Where plates move toward each other, and one plate sinks below another, a
✔ convergent
boundary is formed.
Where two plates slide horizontally past each other, a
✔ transform
boundary is formed.
Of these boundary types, the one most important for subduction and the recycling of lithosphere back into the mantle is the
✔ convergent
boundary.
Step-by-step explanation: