In one day, a full grown redwood tree expels more than 2 tons of water through its leaves.
56
The average ice berg weighs 20,000,000 tons!
54
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
The Niagara Falls moves upstream at an average rate of about 295ft a century!
48
The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63
The Dallas/Ft. Worth airport is larger than New York City's Manhattan Island.
62
Europe is the only continent without a desert.
62
