One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
According to studies, men change their minds two to three times more often than women.
72
The storage capacity of human brain exceeds 4 Terrabytes.
140
One cubic foot of gold weighs more than 1,200 pounds!
78
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
One barrel of petroleum holds 42 gallons.
20
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75