One ragweed plant can release as many as one billion grains of pollen!
51
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
A cubic yard of air weighs about 2 pounds at sea level.
31
The only letter not appearing on the Periodic Table is the letter "J".
180
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
According to studies, men change their minds two to three times more often than women.
72
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42