The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
The average temperature at 40,000 feet above sea level is -60 F.
56
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21
A 'jiffy' is an actual unit of time for 1/100th of a second!
66