Question

what plate boundary process is shown?
a seafloor spreading
b divergent boundary
c convergent boundary
d transform boundary

Explanation:

To determine the plate boundary process, we analyze the diagram:

• Option A (seafloor spreading): Occurs at mid - ocean ridges (divergent boundaries in oceans), but the diagram shows a continental - oceanic interaction, not typical seafloor spreading.
• Option B (divergent boundary): Plates move apart. The diagram shows one plate subducting (going under), not moving apart.
• Option C (convergent boundary): Plates move toward each other. In the diagram, an oceanic plate is subducting under a continental plate (evidenced by the subduction zone, mountain building, and volcanic activity), which is characteristic of a convergent boundary (specifically oceanic - continental convergence).
• Option D (transform boundary): Plates slide past each other horizontally. The diagram shows subduction, not sliding.

Answer:

C. convergent boundary