Question

A long Narrow Chain of underwater hills or mountains

Answer 1

Answer:

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Explanation:

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.

Answer 2

A long Narrow Chain of underwater hills or mountains are known as Mid-ocean ridges

Explanation:

• A mid-ocean ridge is the mountain system in the ocean floor formed by plate movement or tectonics.
• A mid-ocean ridge indicates the edge of two tectonic plates which are moving away from each other.
• This mid-ocean ridge system is the longest mountain range with the length of $65,000 \;km$ in the world.
• This also helps to explain the continental drift and the effects of plate tectonics.