Australia's Great Barrier Reef is 1,250 miles long!
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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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The average ice berg weighs 20,000,000 tons!
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Every year, Alaska has about 5,000 earthquakes.
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The names of the continents all end with the same letter with which they start, excluding the North and South infront of AmericA.
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