One cubic mile of seawater contains about 50 pounds of gold.
79
Europe is the only continent without a desert.
62
There's a lake under Antarctica that is 25 million years old called Lake Vostok.
109
The city of Houston, Texas is built on a swamp and is slowly sinking!
89
Forest fires move faster uphill than downhill.
52
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
Louisiana is the only state that grows in land area every year (Due to alluvial deposits from the Mississippi River).
41