The Amazon rainforest produces more than 20% the world's oxygen supply.
182
In 1850, only 8% of the people in California were women.
0
The Dallas/Ft. Worth airport is larger than New York City's Manhattan Island.
62
Even Antarctica has an area code. It's 672.
58
Check your map! Virginia extends farther west than West Virginia.
67
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
Israel's Dead Sea is 1,312 feet below sea level.
48
More than 25% of the world's forests are in Siberia.
51