Europe is the only continent without a desert.
62
The Niagara Falls moves upstream at an average rate of about 295ft a century!
48
A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18
In 1850, only 8% of the people in California were women.
0
The Amazon rainforest produces more than 20% the world's oxygen supply.
182
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55
More than 25% of the world's forests are in Siberia.
51