The Amazon rainforest produces more than 20% the world's oxygen supply.
182
Check your map! Virginia extends farther west than West Virginia.
67
The Dallas/Ft. Worth airport is larger than New York City's Manhattan Island.
62
The Caspian Sea is also classed as the world's largest lake.
52
There's a lake under Antarctica that is 25 million years old called Lake Vostok.
109
The names of the continents all end with the same letter with which they start, excluding the North and South infront of AmericA.
86
The warmest temperature ever recorded on Antarctica was 3 degrees F.
175
