Final answer:
The mechanism responsible for shaping the ocean floors is called plate tectonics. This geological theory explains the movement of Earth's crust, leading to landforms and oceanic features, as well as serving as Earth's heat transfer system.
Step-by-step explanation:
The mechanism that has generated the floors of the world's ocean is called plate tectonics. Plate tectonics is the theory that explains how slow motions within the Earth's mantle move large segments of the crust, leading to the gradual 'drifting' of continents, formation of mountains, and the creation of ocean floors. It can also result in geological phenomena such as earthquakes, volcanic eruptions, and continental drift. Furthermore, it acts as an efficient heat transfer process for the Earth, moving heat from the interior to outer space, serving as a planetary cooling system. All planetary bodies develop a heat transfer process as they evolve, and plate tectonics is Earth's version of this process, significantly influenced by its chemical makeup and structural characteristics.