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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
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A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.
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The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.
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There are 20 feet of blood vessels in each square inch of human skin.