Question

consider the illustration of various plate movements.
which statement is true with respect to the illustrations?
in site d, an island chain will form.
in site b, a continental plate is colliding with an oceanic plate.
site c shows one plate sinking under another.
a volcano will form at site a.

Explanation:

• Site A: Shows a divergent oceanic boundary (plates moving apart), which creates a mid-ocean ridge, not a volcano formed by subduction or hot spot activity described here.
• Site B: Shows a hot spot under continental crust, forming a volcanic dome, not a continental-oceanic plate collision.
• Site C: Shows an oceanic plate sinking beneath another plate (subduction zone), which matches the statement.
• Site D: Shows a continental-continental convergent boundary, where mountains form, not an island chain (which forms from oceanic subduction or hot spots over ocean crust).

Answer:

Site C shows one plate sinking under another.