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what type of plate boundary is an island arc what type of plate boundary is island arc and trenches what type of plate boundary is volcanic island arc what type of plate boundary creates an island arc what type of plate boundary forms island arcs what type of plate boundary do island arcs occur at what type of plate boundary forms island arcs by subduction what type of plate boundary is associated with volcanic island arcs what plate boundary is an island arc which type of plate boundary produces volcanic island arcs
