It takes a drop of ocean water more than 1,000 years to circulate around the world.
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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
Australia's Great Barrier Reef is 1,250 miles long!
45
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
The warmest temperature ever recorded on Antarctica was 3 degrees F.
175
A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
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The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
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