Louisiana is the only state that grows in land area every year (Due to alluvial deposits from the Mississippi River).
41
In 1850, only 8% of the people in California were women.
0
An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
243
One cubic mile of seawater contains about 50 pounds of gold.
79
The Amazon rainforest produces more than 20% the world's oxygen supply.
182
More than a dozen men have stood on the surface of the moon, but only three have been to Challenger Deep in the Marianas Trench, the deepest known spot in the ocean.
17
The city of Houston, Texas is built on a swamp and is slowly sinking!
89