Here's why:

* Convergent Plate Boundaries: These occur when two tectonic plates collide. The denser plate subducts (slides) beneath the less dense plate. This process often leads to volcanic activity and the formation of mountains.

* Subduction Zones: The area where one plate slides beneath another is called a subduction zone. Mount Pelée is situated within a subduction zone.

* Volcanic Activity: As the subducting plate sinks deeper, it melts, creating magma that rises to the surface, forming volcanoes like Mount Pelée.

Therefore, Mount Pelée's location on a convergent plate boundary, specifically a subduction zone, is the reason for its volcanic activity.