The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
59
The Amazon rainforest produces more than 20% the world's oxygen supply.
182
The Sahara desert expands at about 1km per month.
90
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
There's a lake under Antarctica that is 25 million years old called Lake Vostok.
109