Mexico City is built on top of an underground resevoir!
47
The average ice berg weighs 20,000,000 tons!
54
The water of the Antarctica is so cold that nothing can rot there.
334
Australia's Great Barrier Reef is 1,250 miles long!
45
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
Every year, Alaska has about 5,000 earthquakes.
31
Even Antarctica has an area code. It's 672.
58
Israel's Dead Sea is 1,312 feet below sea level.
48