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
The Caspian Sea is also classed as the world's largest lake.
52
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
Check your map! Virginia extends farther west than West Virginia.
67
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41