Check your map! The Pacific entrance of the Panama Canal is farther East than the Atlantic entrance.
40
The average ice berg weighs 20,000,000 tons!
54
Australia's Great Barrier Reef is 1,250 miles long!
45
More than a dozen men have stood on the surface of the moon, but only three have been to Challenger Deep in the Marianas Trench, the deepest known spot in the ocean.
17
Every year, Alaska has about 5,000 earthquakes.
31
The Amazon rainforest produces more than 20% the world's oxygen supply.
182
Europe is the only continent without a desert.
62
