Australia's Great Barrier Reef is 1,250 miles long!
45
If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
The water of the Antarctica is so cold that nothing can rot there.
334
Europe is the only continent without a desert.
62
A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
59
The average ice berg weighs 20,000,000 tons!
54
The Caspian Sea is also classed as the world's largest lake.
52
One cubic mile of seawater contains about 50 pounds of gold.
79