10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
More than 25% of the world's forests are in Siberia.
51
It's still possible to see the division between East and West Germany due to different light bulbs.
5
Australia's Great Barrier Reef is 1,250 miles long!
45
There are more than 50,000 earthquakes throughout the world every year!
47
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
If Manhattan had the same population density as Alaska, there would only be 15 people living there.
138
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61