A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
59
The Atlantic Ocean is saltier than the Pacific Ocean.
54
The Caspian Sea is also classed as the world's largest lake.
52
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
An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
243
Europe is the only continent without a desert.
62
The Amazon rainforest produces more than 20% the world's oxygen supply.
182