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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.
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Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.
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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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The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.