10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
There are more than 50,000 earthquakes throughout the world every year!
47
The Sahara desert expands at about 1km per month.
90
The names of the continents all end with the same letter with which they start, excluding the North and South infront of AmericA.
86
More than 25% of the world's forests are in Siberia.
51
There are approximately three chickens for every human on Earth.
13
The Atlantic Ocean is saltier than the Pacific Ocean.
54