The city of Houston, Texas is built on a swamp and is slowly sinking!
89
There are more than 50,000 earthquakes throughout the world every year!
47
The Sahara desert expands at about 1km per month.
90
Even Antarctica has an area code. It's 672.
58
Forest growth in the US has exceeded harvest since the 1940’s. Today, we have more trees than any time in the past 100 years.
14
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55
The 'King Ranch' in Texas is bigger than the state of Rhode Island.
49
The water of the Antarctica is so cold that nothing can rot there.
334