Question

a long narrow chain of underwater hills or mountains​

Answer 1

Answer:

Answer. Mid-ocean ridge is one of the known geological feature present in divergent boundary. When two plates are moving away from each other, magma will rise up on the surface file up solidify creating a chain of underwater mountain ranges. One of the known longest mid-ocean ridge is the mid-Atlantic ridge.

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Answer 2

The long narrow chain of underwater hills or mountains​ is called Mid-ocean ridges.

• Formed by tectonic plates' movement mid-ocean ridges are basically mountain chains under the sea.
• More than 90% of mid-ocean ridges are situated in the deep oceans. It can go to the depth of 2,600 meters and from the ocean basin's deepest point it can rise 2,000 meters.

• The Mid-Atlantic Ridge, a spreading centre that bisects the North and South Atlantic basins, was the first mid-ocean ridge found; thus the name "mid-ocean ridge."
• The mid-ocean ridge system is the world's longest mountain range, stretching over 65,000 kilometers (40,000 mi)

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