The Ocean facts enjoy
The ocean contains 80% of life on earth and covers 70% of the earth's surface. Its average depth (about 12,500 feet) is about 5 times the average height of land (about 2,500 feet).
The Challenger Deep, in the Mariana Trench, is the deepest place on earth: it reaches 10,920 meters (35,827 feet) below the ocean surface.
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