More than 25% of the world's forests are in Siberia.
51
A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
59
There are more than 50,000 earthquakes throughout the world every year!
47
The Amazon rainforest produces more than 20% the world's oxygen supply.
181
The 'King Ranch' in Texas is bigger than the state of Rhode Island.
49
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61