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Author Question: Which of the following areas is NOT a NATE certification specialty? A) Oil furnaces B) Commercial ... (Read 150 times) |
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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There are 20 feet of blood vessels in each square inch of human skin.
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The average adult has about 21 square feet of skin.
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Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.