Answer:
Mid ocean ridges
Step-by-step explanation:
The volcanic landforms at divergent oceanic plate boundaries are mid ocean ridges.
A mid-ocean ridge is a mountain range that is situated under the water and created by plate tectonics. It is a volcanic landform which contains several mountains that are connected in chains. A mid-ocean ridge takes place when convection currents increases in the mantle under the oceanic crust and produces magma where two oceanic tectonic plates join together at a divergent boundary. Mid-ocean ridges separate the boundary between two tectonic plates and as a result of this, they are called divergent oceanic plate boundaries.