There are more than 50,000 earthquakes throughout the world every year!
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Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
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The average ice berg weighs 20,000,000 tons!
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The 'King Ranch' in Texas is bigger than the state of Rhode Island.
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Every year, Alaska has about 5,000 earthquakes.
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The North Atlantic gets 2.5 centimetres (1in) wider every year.
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More than a dozen men have stood on the surface of the moon, but only three have been to Challenger Deep in the Marianas Trench, the deepest known spot in the ocean.
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The Caspian Sea is also classed as the world's largest lake.
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