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Author Question: By the thirteenth century, Chinese metallurgists learned that if they heated needles to the Curie ... (Read 169 times) |
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There are approximately 3 million unintended pregnancies in the United States each year.
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Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.
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Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.
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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.
Like most world-changing inventions, the printing press of fifteenth-century Europe took advantage o
Frederick Douglass, having escaped from slavery in 1836, attracted large audiences as an antislavery
Harriet Beecher Stowe’s novel, Uncle Tom’s Cabin, became a staple of the mid-nineteenth-century thea