One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
For every gallon of sea water, you get more than a quarter pound of salt.
45
One 75-watt bulb gives more light than three 25-watt bulbs.
57
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
Nylon is made from coal and petroleum.
42