10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
There are approximately three chickens for every human on Earth.
13
The Caspian Sea is also classed as the world's largest lake.
52
The names of the continents all end with the same letter with which they start, excluding the North and South infront of AmericA.
86
The Niagara Falls moves upstream at an average rate of about 295ft a century!
48
A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18
The water of the Antarctica is so cold that nothing can rot there.
334
Europe is the only continent without a desert.
62