One cubic mile of seawater contains about 50 pounds of gold.
79
A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
59
Every person in the world can fit in Texas and be given over 1000 sq ft in which to live.
14
The names of the continents all end with the same letter with which they start, excluding the North and South infront of AmericA.
86
The Niagara Falls moves upstream at an average rate of about 295ft a century!
48
There's a lake under Antarctica that is 25 million years old called Lake Vostok.
109
The warmest temperature ever recorded on Antarctica was 3 degrees F.
175