Are mountain ranges that run down the center of ocean basins and coincide with spreading centers.

Mid oceanic ridge

Explanation:

 Mid oceanic are the mountain range chain and the largest feature in the ocean basin, and oceanic ridge is the prominent features in the continent of the earth surface. It is found in ocean basin and appeared into the girdle Earth. It is also the largest oceanic ridge in the rise of the east pacific. The oceanic ridges are offset by transform faults and it shows in the direction of the movement.

7.03-1.70=5.33 and 6.80+5.09=11.89 and 5.5-3.01=2.49