More than 25% of the world's forests are in Siberia.
51
One cubic mile of seawater contains about 50 pounds of gold.
79
The Dallas/Ft. Worth airport is larger than New York City's Manhattan Island.
62
There are more than 50,000 earthquakes throughout the world every year!
47
The Niagara Falls moves upstream at an average rate of about 295ft a century!
48
The Amazon rainforest produces more than 20% the world's oxygen supply.
182
The Caspian Sea is also classed as the world's largest lake.
52
The water of the Antarctica is so cold that nothing can rot there.
334