Forest fires move faster uphill than downhill.
52
A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
59
The Caspian Sea is also classed as the world's largest lake.
52
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55
In 1850, only 8% of the people in California were women.
0
The average ice berg weighs 20,000,000 tons!
54
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41