Most dust particles in your house come from dead skin.
48
According to studies, men change their minds two to three times more often than women.
72
The average temperature at 40,000 feet above sea level is -60 F.
56
One ragweed plant can release as many as one billion grains of pollen!
51
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
A cubic yard of air weighs about 2 pounds at sea level.
31
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
The average home creates more pollution than does the average car.
33