Every person in the world can fit in Texas and be given over 1000 sq ft in which to live.
14
If Manhattan had the same population density as Alaska, there would only be 15 people living there.
138
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
The Amazon rainforest produces more than 20% the world's oxygen supply.
182
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
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