The only letter not appearing on the Periodic Table is the letter "J".
180
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Pure water (H2O) does not conduct electricity on its own.
46
Diamonds can be shattered with a hammer.
-104
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Each day, up to 150 species of life become extinct.
-23