Here's why:

* Divergent: This term refers to the movement of the plates. In a divergent boundary, the plates are moving away from each other.

* Plate Boundary: This term indicates that the plates are interacting at their edges, resulting in geological activity.

At divergent plate boundaries, new crust is created as magma rises from the mantle and cools. This process is responsible for the formation of mid-ocean ridges, rift valleys, and volcanoes.