The Amazon rainforest produces more than 20% the world's oxygen supply.
182
More than 25% of the world's forests are in Siberia.
51
There are approximately three chickens for every human on Earth.
13
The Niagara Falls moves upstream at an average rate of about 295ft a century!
48
In 1850, only 8% of the people in California were women.
0
The 'King Ranch' in Texas is bigger than the state of Rhode Island.
49