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Author Question: Which of the following is not a source of noise in the international communication channel? a. ... (Read 21 times) |
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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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.
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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
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The longest a person has survived after a heart transplant is 24 years.
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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.