It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63
The water between India and Sri Lanka is only 3-30 feet deep and was purportedly passable on foot until 1480 AD when a cyclone moved some sand around.
1
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
The state of Florida is bigger than England!
74
The state with the longest coastline in the Continental U.S. is Michigan.
31