How do volcanoes help to identify the location plates bounderioues?

Volcanoes often form along tectonic plate boundaries due to the movement of these plates, which can create conditions for magma to rise to the surface. At divergent boundaries, such as mid-ocean ridges, volcanic activity is common as plates move apart, while at convergent boundaries, subduction leads to volcanic arcs. The distribution of volcanoes can thus be mapped to identify the locations of these plate boundaries. Additionally, the type of volcanic activity and associated geological features provide further insights into the nature of the boundary—whether it is divergent, convergent, or transform.