10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
The warmest temperature ever recorded on Antarctica was 3 degrees F.
175
The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63
The state with the longest coastline in the Continental U.S. is Michigan.
31
Forest fires move faster uphill than downhill.
52
The average ice berg weighs 20,000,000 tons!
54
Forest growth in the US has exceeded harvest since the 1940’s. Today, we have more trees than any time in the past 100 years.
14
Louisiana is the only state that grows in land area every year (Due to alluvial deposits from the Mississippi River).
41