Answer:
Location of these mountain ranges along the plate boundaries.
Step-by-step explanation:
Over 90 percent of world's volcanoes are located along the plate boundaries which are created due to the movement of tectonic plates. For example, Pacific Ring of Fire formed near the zone of downward movement of earth's crust.
But other mountain ranges are not volcanic in origin as the are formed due to folding of earth's crust. For example, Himalayas, Alps, etc.