mid-ocean ridges tey are under water.
no
No, deep sea trenches are not underwater mountain chains. Deep sea trenches are long, narrow depressions in the ocean floor formed by tectonic plate activity, while underwater mountain chains, known as mid-ocean ridges, are long mountain ranges on the ocean floor where tectonic plates are spreading apart.
The continuous mountain range in the Earth's oceans is called the Mid-Atlantic Ridge. This underwater mountain range runs down the center of the Atlantic Ocean and is a divergent boundary where tectonic plates are moving apart, creating new oceanic crust.
Subduction.
A submerged mountain is called a seamount. These underwater mountains do not reach the surface of the ocean and are typically formed by volcanic activity. They can be found throughout the world's oceans and play a significant role in marine ecosystems.
sea floor spreading
The ocean floor feature that consist of chains of individual volcanoes is called mid ocean ridges. This ridge can rise from 1 to 3 kilometers above the ocean basin.
The ocean ridge.
The Ocean Ridge (also known as Mid-ocean ridge), which runs more than 40,000 miles on the sea floor of five oceans is the longest mountain chain in the world.
Underwater mountain chains that form where two tectonic plates are pulling apart are called mid ocean ridges. The largest is the Mid Atlantic Ridge.
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Sea floor spreading causes several chains of underwater mountains. They are sometimes called seamounts. They are also called mid ocean ridges.