Answer:
Plate boundaries where plates are separating are called Divergent Boundaries
Explanation:
Divergent boundaries are the result of two plates pulling apart, it means theay are moving in opposite directions generating tension forces and opening an space that allows magma to rise to the surface.
This kind of boundary is the responsible of the largest mountains ridge on Earth, thas is the Middle Atlantic Ridge and it generates volcanoes fo effusive eruptions.
Usually we find Rifts (Divergent boundaries) in the ocean but there is a very important one in continental crust: The East African Rift.
