The city of Houston, Texas is built on a swamp and is slowly sinking!
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10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
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Louisiana is the only state that grows in land area every year (Due to alluvial deposits from the Mississippi River).
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Australia's Great Barrier Reef is 1,250 miles long!
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Israel's Dead Sea is 1,312 feet below sea level.
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Even Antarctica has an area code. It's 672.
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