In one day, a full grown redwood tree expels more than 2 tons of water through its leaves.
56
The Dallas/Ft. Worth airport is larger than New York City's Manhattan Island.
62
Check your map! Virginia extends farther west than West Virginia.
67
The Caspian Sea is also classed as the world's largest lake.
52
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
The Amazon rainforest produces more than 20% the world's oxygen supply.
182
More than 25% of the world's forests are in Siberia.
51