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Author Question: The story of the search for Mission Santa Catalina illustrates a. the utility of proton ... (Read 72 times) |
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.
Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.
Your heart beats over 36 million times a year.
The human body produces and destroys 15 million blood cells every second.
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.