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Author Question: How have scientists been able to determine that Earth has a liquid metal outer core? What will be ... (Read 44 times) |
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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.
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The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.
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The average office desk has 400 times more bacteria on it than a toilet.
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Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.