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Did you know?
Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.
Did you know?
Thyroid conditions may make getting pregnant impossible.
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
Did you know?
Vaccines prevent between 2.5 and 4 million deaths every year.