The average ice berg weighs 20,000,000 tons!
54
The state of Florida is bigger than England!
74
In 1850, only 8% of the people in California were women.
0
If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
The city of Houston, Texas is built on a swamp and is slowly sinking!
89
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
Mexico City is built on top of an underground resevoir!
47