The d)Ross and Ronne ice shelves are major land forms in Antarctica. The Ross ice shelf is the largest land form in Antarctica and is around the size of France and the Ronne ice shelf borders the Weddell Sea.
As subdivision is a process of the landscape going into the surface of the earth the zones marked by the formation of volcanic ars festoons and ridges also this is caused due to the impact of the melting of the control plates from below.
The flat labs are subducted into the mental from above by the action of slab push and slab pull. They are also important sites for the deposition of nuclear wastes.
As this subduction at some depths is necessary to derive the lava or magma to greater heights. This subduction can occur within oceanic zones and as a result, the Subduction also causes orogeny which bringing in oceanic material that collides with the overriding continent.