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Author Question: Calculate the frequency of visible light having a wavelength of 686 nm. (Read 27 times) |
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Vaccines prevent between 2.5 and 4 million deaths every year.
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As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.
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According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.
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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.