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Author Question: Discuss two ways of detecting dark matter in distant galaxies and clusters. What will be an ideal ... (Read 30 times) |
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Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.
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In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.
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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.