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
If Manhattan had the same population density as Alaska, there would only be 15 people living there.
138
A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
59
Forest fires move faster uphill than downhill.
52
The average ice berg weighs 20,000,000 tons!
54
Every year, Alaska has about 5,000 earthquakes.
31