When two oceanic plates collide and subduction plate motion. Areas where subduction takes deep ocean (oceanic trenches) and the volcanic islands (volcanic island chains).
When two Ocean plates moving crust collide and address the. Where there is an ocean deep groove is to burrow (oceanic trenches) and the volcano Islands (volcanic island chains).
When the crust of the earth two ocean plates collide with each other and the mobility to dive, the area that is to be buried in the deep ocean (oceanic trenches) and the volcano Islands (volcanic Island chains).