The Amazon rainforest produces more than 20% the world's oxygen supply.
182
The warmest temperature ever recorded on Antarctica was 3 degrees F.
175
There's a lake under Antarctica that is 25 million years old called Lake Vostok.
109
More than a dozen men have stood on the surface of the moon, but only three have been to Challenger Deep in the Marianas Trench, the deepest known spot in the ocean.
17
Every year, Alaska has about 5,000 earthquakes.
31
Even Antarctica has an area code. It's 672.
58
If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
Europe is the only continent without a desert.
62