The plate boundaries which are ________ are likely to make island arcs.
A) divergent between continental plates
B) convergent between continental plates
C) divergent between oceanic plates
D) convergent between oceanic plates
E) none of the above

Question

Quizplus · Accepted Answer

Convergent boundaries occur when two plates move towards each other. When one plate is an oceanic plate and the other is either an oceanic or a continental plate, the denser oceanic plate subducts under the other plate, forming a trench. The subducting plate melts in the mantle and the magma rises to form a volcanic island arc above the trench. Therefore, convergent boundaries between oceanic plates are likely to make island arcs.

The Plate Boundaries Which Are ________ Are Likely to Make