The Amazon rainforest produces more than 20% the world's oxygen supply.
182
Even Antarctica has an area code. It's 672.
58
There are more than 50,000 earthquakes throughout the world every year!
47
If Manhattan had the same population density as Alaska, there would only be 15 people living there.
138
Forest fires move faster uphill than downhill.
52
More than 25% of the world's forests are in Siberia.
51
The Caspian Sea is also classed as the world's largest lake.
52
The average ice berg weighs 20,000,000 tons!
54