Which of the following gases support combustion? Air Oxygen Helium Carbon Dioxide
a. 2 only c. 2, 3
b. 1, 2 d. 1, 3, 4
ANS: B
Oxygen and air support combustion. Helium and carbon dioxide are not flammable
Health Professions
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A) derived from molds B) antibiotic C) systemic D) killing microbes
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In which country are employers required by law to contribute toward health insurance for their employees?
a. Germany b. United States c. Great Britain d. Canada
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Which of the following accurately describes a flail chest?
a. Double fractures of 2 adjacent ribs b. Double fractures of 3 adjacent ribs c. Single fracture of 3 adjacent ribs d. Triple fractures of 2 adjacent ribs
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Which substance is reabsorbed by osmosis in the proximal tubule?
a. water c. glucose b. H+ d. K+
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