The Amazon rainforest produces more than 20% the world's oxygen supply.
182
The average ice berg weighs 20,000,000 tons!
54
Louisiana is the only state that grows in land area every year (Due to alluvial deposits from the Mississippi River).
41
A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18
The city of Houston, Texas is built on a swamp and is slowly sinking!
89
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
If Manhattan had the same population density as Alaska, there would only be 15 people living there.
138