A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
59
The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63
Connecticut and Rhode Island never ratified the 18th Amendment (Prohibition).
25
In 1850, only 8% of the people in California were women.
0
Check your map! The Pacific entrance of the Panama Canal is farther East than the Atlantic entrance.
40
There are approximately three chickens for every human on Earth.
13
