GEOLOGY

Detailed explanation-1: -The mid ocean ridge systems are the largest geological features on the planet. The Mid-Atlantic Ridge (MAR) is a mostly underwater mountain range in the Atlantic Ocean that runs from 87°N-about 333km south of the North Pole-to subantarctic Bourvet island at 54°S.

Detailed explanation-2: -The mid-ocean ridge is the most extensive chain of mountains on Earth, stretching nearly 65, 000 kilometers (40, 390 miles) and with more than 90 percent of the mountain range lying underwater, in the deep ocean.

Detailed explanation-3: -Undersea mountain ranges are mountain ranges that are mostly or entirely underwater, and specifically under the surface of an ocean. If originated from current tectonic forces, they are often referred to as a mid-ocean ridge. In contrast, if formed by past above-water volcanism, they are known as a seamount chain.

Detailed explanation-4: -The mid-ocean ridge is a continuous range of undersea volcanic mountains that encircles the globe almost entirely underwater.

Detailed explanation-5: -Axial Ridge. Magnetics & Polarity. Fast/Slow Spreading.