In 1850, only 8% of the people in California were women.
0
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63
The Dallas/Ft. Worth airport is larger than New York City's Manhattan Island.
62
If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
Check your map! Virginia extends farther west than West Virginia.
67
The water of the Antarctica is so cold that nothing can rot there.
334
The Sahara desert expands at about 1km per month.
90