Europe is the only continent without a desert.
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Even Antarctica has an area code. It's 672.
58
One cubic mile of seawater contains about 50 pounds of gold.
79
The Caspian Sea is also classed as the world's largest lake.
52
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
The Sahara desert expands at about 1km per month.
90
Every year, Alaska has about 5,000 earthquakes.
31