The earth is approx. 6,588,000,000,000,000,000 tons.
175
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
One barrel of petroleum holds 42 gallons.
20
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
For every gallon of sea water, you get more than a quarter pound of salt.
45
A cubic yard of air weighs about 2 pounds at sea level.
31
Billions of neutrinos pass unnoticed through your body every second.
6