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Author Question: Which element is a halogen? A) Ba B) Li C) Xe D) F ... (Read 18 times) |
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).
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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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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
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All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.