For every gallon of sea water, you get more than a quarter pound of salt.
45
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
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 cubic foot of gold weighs more than 1,200 pounds!
78
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Diamonds can be shattered with a hammer.
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