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
In 1850, only 8% of the people in California were women.
0
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
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Israel's Dead Sea is 1,312 feet below sea level.
48
There are more than 50,000 earthquakes throughout the world every year!
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The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63