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Author Question: Aluminum welding requires postweld heat treatment. Indicate whether the statement is true or ... (Read 30 times) |
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Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.
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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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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.