The Amazon rainforest produces more than 20% the world's oxygen supply.
182
The Caspian Sea is also classed as the world's largest lake.
52
Check your map! The Pacific entrance of the Panama Canal is farther East than the Atlantic entrance.
40
Every person in the world can fit in Texas and be given over 1000 sq ft in which to live.
14
Connecticut and Rhode Island never ratified the 18th Amendment (Prohibition).
25
One cubic mile of seawater contains about 50 pounds of gold.
79
There are approximately three chickens for every human on Earth.
13
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55