In one day, a full grown redwood tree expels more than 2 tons of water through its leaves.
56
The names of the continents all end with the same letter with which they start, excluding the North and South infront of AmericA.
86
One cubic mile of seawater contains about 50 pounds of gold.
79
The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63
A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
59
Check your map! Virginia extends farther west than West Virginia.
67
The Niagara Falls moves upstream at an average rate of about 295ft a century!
48
Connecticut and Rhode Island never ratified the 18th Amendment (Prohibition).
25