Active volcanoes mainly occur at convergent plate boundaries due to subduction processes resulting in magma formation and volcanic activity.
Most of the active volcanoes in the world occur at convergent plate boundaries. Volcanoes form at these boundaries due to the process of subduction, where denser oceanic plates sink beneath lighter continental plates, causing melting of the subducted material and the formation of magma that can erupt to the surface as a volcano.
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