Every year, Alaska has about 5,000 earthquakes.
31
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
Connecticut and Rhode Island never ratified the 18th Amendment (Prohibition).
25
More than a dozen men have stood on the surface of the moon, but only three have been to Challenger Deep in the Marianas Trench, the deepest known spot in the ocean.
17
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
It's still possible to see the division between East and West Germany due to different light bulbs.
5
The Atlantic Ocean is saltier than the Pacific Ocean.
54