Every year, Alaska has about 5,000 earthquakes.
31
In one day, a full grown redwood tree expels more than 2 tons of water through its leaves.
56
An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
243
There are approximately three chickens for every human on Earth.
13
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55
Israel's Dead Sea is 1,312 feet below sea level.
48
There's a lake under Antarctica that is 25 million years old called Lake Vostok.
109
The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63