14. Most of the Philippine Islands were once part of island arcs. This means that along with this boundary, there once existed two A. converging continental plates C. converging oceanic plates B. diverging plates D. plates sliding past each other 5. Why are volcanoes mostly found at places where continents meet the seas? A. It is where water meets land. B. It is where the oceanic plates subduct under the continental plate. C. Underneath it is a subduction zone. D. More magma is produced under t