The continuous submarine mountain range which winds through all the oceans is called the mid-ocean

The continuous submarine mountain range which winds through all the oceans is called the mid-ocean ridge.
It is a form of a mountain which is found underwater, and it appeared there due to the movements of tectonic plates. It is responsible for the creation of new seafloor, meaning that the ground underwater changes constantly with the formation of these ridges. 

This is the answer of your question