The Dallas/Ft. Worth airport is larger than New York City's Manhattan Island.
62
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
In 1850, only 8% of the people in California were women.
0
The water of the Antarctica is so cold that nothing can rot there.
334
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
Forest growth in the US has exceeded harvest since the 1940’s. Today, we have more trees than any time in the past 100 years.
14