4.5 pounds of sunlight strike the Earth each day.
27
According to studies, men change their minds two to three times more often than women.
72
The bark of an older redwood tree is fireproof.
65
The average home creates more pollution than does the average car.
33
For every gallon of sea water, you get more than a quarter pound of salt.
45
Your brain is 80% water.
525
Most dust particles in your house come from dead skin.
48
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39