The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.
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The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.
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More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.
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Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.
Indian elephant, from a Lombardy manuscript, circa 1400.
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MATH ODDS AND PROBABILITY PLEASE ANSWER THE PICTURE