One cubic mile of seawater contains about 50 pounds of gold.
79
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
There are approximately three chickens for every human on Earth.
13
The water of the Antarctica is so cold that nothing can rot there.
334
It's still possible to see the division between East and West Germany due to different light bulbs.
5