Question

the image below illustrates how volcanoes are a result of *
subduction of the more dense plate
earthquakes
divergent boundaries
seafloor spreading

Explanation:

Volcanoes often form at sub - duction zones where a more dense tectonic plate slides beneath a less dense one. The subduction process can cause melting of the mantle above the subducting plate, and the molten rock (magma) rises to form volcanoes. Earthquakes are associated with plate movements but not the direct cause as shown in the image. Divergent boundaries and seafloor spreading are related to the creation of new crust rather than the formation depicted here.

Answer:

subduction of the more dense plate