More than 25% of the world's forests are in Siberia.
51
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55
One cubic mile of seawater contains about 50 pounds of gold.
79
The city of Houston, Texas is built on a swamp and is slowly sinking!
89
There are more than 50,000 earthquakes throughout the world every year!
47
A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
59
Connecticut and Rhode Island never ratified the 18th Amendment (Prohibition).
25