The Sahara desert expands at about 1km per month.
90
In one day, a full grown redwood tree expels more than 2 tons of water through its leaves.
56
In 1850, only 8% of the people in California were women.
0
There are more than 50,000 earthquakes throughout the world every year!
47
The warmest temperature ever recorded on Antarctica was 3 degrees F.
175
Check your map! The Pacific entrance of the Panama Canal is farther East than the Atlantic entrance.
40