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Uncovering secrets of the Mariana Trench - British Geological Survey
Mariana Trench: Deepest-ever sub dive finds plastic bag - BBC News
10 Deepest Parts of the Ocean
Ocean Trench
Mariana Trench, Pacific Ocean - Challenger Deep is the name of the deepest known part of the Earth's seabed hydrosphere, in the Southern tip of the Mariana Trench, delving 36000 feet deep. | Facebook