One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
Nearly 50% of the world's scientists are assigned to military projects.
71
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
One cubic foot of gold weighs more than 1,200 pounds!
78
One barrel of petroleum holds 42 gallons.
20
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
Iron weighs more after it rusts.
16
One 75-watt bulb gives more light than three 25-watt bulbs.
57