There are more than 50,000 earthquakes throughout the world every year!
47
One cubic mile of seawater contains about 50 pounds of gold.
79
The Amazon rainforest produces more than 20% the world's oxygen supply.
182
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
There's a lake under Antarctica that is 25 million years old called Lake Vostok.
109
If Manhattan had the same population density as Alaska, there would only be 15 people living there.
138
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61