10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
The state with the longest coastline in the Continental U.S. is Michigan.
31
Israel's Dead Sea is 1,312 feet below sea level.
48
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
There are approximately three chickens for every human on Earth.
13
The warmest temperature ever recorded on Antarctica was 3 degrees F.
175
Mexico City is built on top of an underground resevoir!
47