Every year, Alaska has about 5,000 earthquakes.
31
Mexico City is built on top of an underground resevoir!
47
In one day, a full grown redwood tree expels more than 2 tons of water through its leaves.
56
The warmest temperature ever recorded on Antarctica was 3 degrees F.
175
In 1850, only 8% of the people in California were women.
0
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
The water of the Antarctica is so cold that nothing can rot there.
334