Question

12 the diagram below shows a subduction zone. what type of plate boundary is shown in the image? (a)
a divergent
b transform
c convergent
(b) what three landforms are likely to occur here at this type of plate boundary?
a ocean trench
b volcanoes
c mid - ocean ridge
d mountains

Explanation:

Part (a)

To determine the plate boundary type:

• Divergent boundaries involve plates moving apart (e.g., mid - ocean ridges).
• Transform boundaries involve plates sliding past each other (e.g., San Andreas fault).
• Convergent boundaries involve plates colliding. A subduction zone (where one plate is forced under another) is a characteristic of convergent boundaries. The diagram shows a subduction zone, so the boundary is convergent.

For landforms at a convergent (subduction) boundary:

• Ocean trench: Forms where an oceanic plate subducts under another plate.
• Volcanoes: Form as the subducted plate melts and magma rises to the surface.
• Mountains: Can form from the collision and uplift of continental plates (or when an oceanic plate subducts under a continental plate, leading to mountain building over time).
• Mid - ocean ridge is a divergent boundary landform, so it is not correct here.

Answer:

C. convergent

Part (b)