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Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.
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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.