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Author Question: Calculating the average time callers wait on the phone for technical support is an example of ... (Read 132 times) |
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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Vaccines prevent between 2.5 and 4 million deaths every year.
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Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.