The Ming Dynasty ships used magnetic compasses similar to those used today.

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

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Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

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About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

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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.

ending is impeded by the magnetic attraction between stick and stickase

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A fibrous root system has similar-sized adventitious roots that branch from the stem

Author Question: The Ming Dynasty ships used magnetic compasses similar to those used today. (Read 51 times)

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