Forest fires move faster uphill than downhill.
52
The state of Florida is bigger than England!
74
The Niagara Falls moves upstream at an average rate of about 295ft a century!
48
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
The water of the Antarctica is so cold that nothing can rot there.
334
The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63
There are more than 50,000 earthquakes throughout the world every year!
47
The state with the longest coastline in the Continental U.S. is Michigan.
31