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Author Question: The main component of the lower atmosphere by total volume is ________. A) oxygen B) nitrogen ... (Read 25 times) |
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Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.
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Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.
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There are 20 feet of blood vessels in each square inch of human skin.
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.