10 incredible facts about the deep ocean | New York News

10 incredible facts about the deep ocean | New York News: "The ocean is deep. In fact, most of it is deep.

Officially anything deeper than just 200 meters is considered the “deep sea”, but the average depth of the entire ocean is about 3.5km and the deepest point – the Challenger Deep in the Mariana Trench, in the western Pacific – is a little short of 11km down.

That means that most of the living space on Earth is in the deep sea.

We scientists like to categorize things and the ocean depths are no exception.

Depths from the surface to 0.2km is known as the “littoral zone”, from 0.2km to 3km, the “bathyal zone”, and from 3km to 6km, the “abyssal zone”.

Anything deeper than that is the “hadal zone”."



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