More than a dozen men have stood on the surface of the moon, but only three have been to Challenger Deep in the Marianas Trench, the deepest known spot in the ocean.
17
A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
59
Israel's Dead Sea is 1,312 feet below sea level.
48
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
The state of Florida is bigger than England!
74
In 1850, only 8% of the people in California were women.
0
There are approximately three chickens for every human on Earth.
13
The average ice berg weighs 20,000,000 tons!
54