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

Answer 1

A string of small volcanic islands is most likely to form at a convergent plate boundary, specifically in subduction zones where an oceanic plate is being forced beneath another oceanic plate (this can lead to the formation of volcanic island arcs). These islands form as magma generated by the melting of the subducted plate rises to the surface. A well-known example of this is the Aleutian Islands in Alaska, which are formed by the subduction of the Pacific Plate beneath the North American Plate.