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 growth in the US has exceeded harvest since the 1940’s. Today, we have more trees than any time in the past 100 years.
14
An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
243
Every person in the world can fit in Texas and be given over 1000 sq ft in which to live.
14
The Caspian Sea is also classed as the world's largest lake.
52
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41