Forest fires move faster uphill than downhill.
52
The Amazon rainforest produces more than 20% the world's oxygen supply.
182
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
Check your map! The Pacific entrance of the Panama Canal is farther East than the Atlantic entrance.
40
The water of the Antarctica is so cold that nothing can rot there.
334
The names of the continents all end with the same letter with which they start, excluding the North and South infront of AmericA.
86
One cubic mile of seawater contains about 50 pounds of gold.
79