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
Louisiana is the only state that grows in land area every year (Due to alluvial deposits from the Mississippi River).
41
More than 25% of the world's forests are in Siberia.
51
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
Forest fires move faster uphill than downhill.
52
A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18
The average ice berg weighs 20,000,000 tons!
54
There are more than 50,000 earthquakes throughout the world every year!
47