10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
The Niagara Falls moves upstream at an average rate of about 295ft a century!
48
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55
The state with the longest coastline in the Continental U.S. is Michigan.
31
Europe is the only continent without a desert.
62