Question

Which features form at a convergent boundary? Select ALL that apply.

deep sea trenches

island arcs

mountain ranges

continental rifts

Answer 1

Correct answers: deep sea trenches, island arcs, and mountain ranges.

- Deep-sea trenches form at subduction zones where one plate is forced beneath another (oceanic-oceanic or oceanic-continental convergence).
- Island arcs form at oceanic–oceanic convergent boundaries from volcanic activity above the subducting slab (e.g., Japan, Aleutians).
- Mountain ranges form at continental–continental convergent collisions (e.g., the Himalaya).
- Continental rifts form at divergent boundaries, not convergent ones.