Choose the appropriate terms to complete the sentences.
A
The theory of plate tectonics includes_____types of plate boundaries.
boundary________is formed when plates move away from each other.
Where plates move toward each other, and one plate sinks below another, a______
boundary is formed.
Where two plates slide horizontally past each other, a______
boundary is formed.
Of these boundary types, the one most important for subduction and the recycling of lithosphere back into the mantle is the_____boundary.