Respiratory illnesses in developing countries are most likely to be caused by
A. formaldehyde.
B. cigarette smoke.
C. suspended particulate matter.
D. asbestos.
E. ozone.
Answer: C
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Which of the following is true of amylose?
A) It consists of as many as 4000 D-glucose units linearly linked by a(1 ? 4 ) glycosidic bonds. B) It consists of as many as 4000 D-glucose units linearly linked by b(1 ? 4 ) glycosidic bonds. C) It consists of as many as 10,000 D-glucose units linearly linked by a(1 ? 4 ) glycosidic bonds and there are branches every 24-30 units via a(1 ? 6 ) glycosidic bonds. D) It consists of as many as 10,000 D-glucose units linearly linked by b(1 ? 4 ) glycosidic bonds and there are branches every 24-30 units via b(1 ? 6 ) glycosidic bonds.
The Aral Sea provides a good illustration of international cooperation in water-resource management, with the additional benefit of enhancing commercial fishing opportunities.
Answer the following statement true (T) or false (F)
Approximately 15 percent of the world's ocean area produces eighty-five percent of the ocean's harvest.
Answer the following statement true (T) or false (F)
One of the primary uses for a 500-mb map is:
A) to determine the speed and direction of motion for a mid-latitude cyclone. B) to estimate surface air temperature. C) to monitor the position of the polar jet stream. D) to predict surface wind speeds.