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You are here: Home / Environment / How deep is the sea?

How deep is the sea?

Have you ever wondered just how far down the deepest ocean is, well it’s believed to be the Mariana Trench, in south east Japan.

The trench reaches a depth of 11,035 metres.  If you compare this to the height of Mount Everest which stands at 8,848 metres, it really is the deep dark ocean!

Below a few thousand metres, there’s no light or algae and therefore no energy and very little oxygen.

The few fish that can live that deep are usually blind and have huge mouths so that they can eat any food – possibly bones – that might come their way.

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