The horizontal fraction bar was introduced by the Arabs.
Did you know?
More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
Did you know?
To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.
True-color view of Mars seen through NASA's Hubble Space Telescope in 1999
TrUe....FaLsE
True-color image of layers of haze in Titan's atmosphere.
True Friendship
Which of the following statements is true of linkage?