<u>Ocean basins refer to the part of the surface of the earth which extends to the sea from the continental margins.</u>
All ocean basins are characterized by the primary features such as;<em><u>mid-ocean ridges, abyssal plains, trenches, and seamounts.
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Mid-ocean ridges are the most impressive feature of all ocean basins, which are long-continuous volcanic mountain ridges, they mark areas where oceanic crust sections are pulling or stretching apart.