A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
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In one day, a full grown redwood tree expels more than 2 tons of water through its leaves.
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The Atlantic Ocean is saltier than the Pacific Ocean.
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The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
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Australia's Great Barrier Reef is 1,250 miles long!
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