Question

which geologic features would be expected at an oceanic - oceanic convergent boundary? earthquake activity volcanic island arcs continental volcanic mountains a coastal mountain range

Explanation:

At ocean - ocean convergent boundaries, one oceanic plate subducts beneath another. This subduction can cause earthquake activity due to the friction between the plates. Also, as the subducting plate melts, magma rises to form volcanic island arcs. Continental volcanic mountains and coastal mountain ranges are associated with continental - oceanic or continental - continental plate interactions.

Answer:

A. earthquake activity
B. volcanic island arcs