The Amazon rainforest produces more than 20% the world's oxygen supply.
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The Atlantic Ocean is saltier than the Pacific Ocean.
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The Caspian Sea is also classed as the world's largest lake.
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The Niagara Falls moves upstream at an average rate of about 295ft a century!
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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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Longest officially recognized place name is Taumatawhakatangihangakoauauotamateapokaiwhenuakitanatahu.
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