The Amazon rainforest produces more than 20% the world's oxygen supply.
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The 'King Ranch' in Texas is bigger than the state of Rhode Island.
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The Niagara Falls moves upstream at an average rate of about 295ft a century!
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Every person in the world can fit in Texas and be given over 1000 sq ft in which to live.
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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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Forest growth in the US has exceeded harvest since the 1940’s. Today, we have more trees than any time in the past 100 years.
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Check your map! The Pacific entrance of the Panama Canal is farther East than the Atlantic entrance.
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