MCQOPTIONS
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| 1. |
Ascent of high mountains may cause altitude sickness in men. Prime cause for this is _______ |
| A. | Decreased proportion of oxygen in the air |
| B. | Decreased partial pressure of oxygen |
| C. | Decreased efficiency of hemoglobin |
| D. | Excess CO<sub>2</sub> in blood |
| Answer» C. Decreased efficiency of hemoglobin | |