At which type of boundary would a string of small volcanic islands most likely form?

Divergent ocean-ocean boundary.
Convergent ocean-ocean boundary.
Transverse boundary.
Convergent ocean-land boundary.

1 answer

A string of small volcanic islands is most likely to form at a convergent ocean-ocean boundary. At this type of boundary, one oceanic plate subducts beneath another, leading to the formation of volcanic island arcs as magma rises to the surface. Examples of this type of boundary include the Aleutian Islands in Alaska and the Mariana Islands in the Pacific Ocean.