10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
In one day, a full grown redwood tree expels more than 2 tons of water through its leaves.
56
Every year, Alaska has about 5,000 earthquakes.
31
Europe is the only continent without a desert.
62
Forest fires move faster uphill than downhill.
52
In 1850, only 8% of the people in California were women.
0
The Atlantic Ocean is saltier than the Pacific Ocean.
54