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Author Question: The fall of Arab dictatorships in 2011 were hastened by a. rising world oil prices. b. Web 2.0 ... (Read 45 times) |
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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
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About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.