The Dallas/Ft. Worth airport is larger than New York City's Manhattan Island.
62
The state with the longest coastline in the Continental U.S. is Michigan.
31
The water of the Antarctica is so cold that nothing can rot there.
334
Forest fires move faster uphill than downhill.
52
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
The Amazon rainforest produces more than 20% the world's oxygen supply.
182
