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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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Illicit drug use costs the United States approximately $181 billion every year.
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There are 60,000 miles of blood vessels in every adult human.
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In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.
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Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.