hotspot volcanoes occur along subduction zones. true or false, Magma is molten material from the mantle that has reached Earth's surface, Not all volcanoes form along plate boundaries true or False, The Ring of Fire is a major belt of, volcanoes that form along a mid-ocean ridge occur at a diverging plate boundary. t or f, Do all volcanoes form along plate boundaries, magma is molten material from the mantle that has reached earth's surface. true false, Volcanoes are formed only in the continental crust true or false
