Every year, Alaska has about 5,000 earthquakes.
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The city of Houston, Texas is built on a swamp and is slowly sinking!
89
Even Antarctica has an area code. It's 672.
58
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
There's a lake under Antarctica that is 25 million years old called Lake Vostok.
109
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.
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