Every year, Alaska has about 5,000 earthquakes.
31
The Sahara desert expands at about 1km per month.
90
Israel's Dead Sea is 1,312 feet below sea level.
48
A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
59
A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18
The warmest temperature ever recorded on Antarctica was 3 degrees F.
175
The Amazon rainforest produces more than 20% the world's oxygen supply.
182