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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.
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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
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Your heart beats over 36 million times a year.
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The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."