There are more bacteria in your mouth than there are people in the world.
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.
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There are 20 feet of blood vessels in each square inch of human skin.
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Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.
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Illicit drug use costs the United States approximately $181 billion every year.
Participation of water in biological reactions
Layers of Rock Laid Down by Water
Vapour-liquid equilibrium acetone + water
Cold, dense water accumulates around the Arctic and Antarctic
An 80-g aluminum calorimeter contains 380 g of water at an equilibrium temperature of A piece ...