The Sahara desert expands at about 1km per month.
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The city of Houston, Texas is built on a swamp and is slowly sinking!
89
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
Louisiana is the only state that grows in land area every year (Due to alluvial deposits from the Mississippi River).
41
The Caspian Sea is also classed as the world's largest lake.
52
The water between India and Sri Lanka is only 3-30 feet deep and was purportedly passable on foot until 1480 AD when a cyclone moved some sand around.
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