In 1850, only 8% of the people in California were women.
0
In one day, a full grown redwood tree expels more than 2 tons of water through its leaves.
56
The Sahara desert expands at about 1km per month.
90
Check your map! The Pacific entrance of the Panama Canal is farther East than the Atlantic entrance.
40
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
There are more than 50,000 earthquakes throughout the world every year!
47