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.
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Mexico City is built on top of an underground resevoir!
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A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18
If Manhattan had the same population density as Alaska, there would only be 15 people living there.
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The water between India and Sri Lanka is only 3-30 feet deep and was purportedly passable on foot until 1480 AD when a cyclone moved some sand around.
1
Every year, Alaska has about 5,000 earthquakes.
31
The city of Houston, Texas is built on a swamp and is slowly sinking!
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