The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63
In one day, a full grown redwood tree expels more than 2 tons of water through its leaves.
56
Check your map! Virginia extends farther west than West Virginia.
67
In 1850, only 8% of the people in California were women.
0
The Atlantic Ocean is saltier than the Pacific Ocean.
54
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
One cubic mile of seawater contains about 50 pounds of gold.
79
The water of the Antarctica is so cold that nothing can rot there.
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