When ascending into the mountains, a group of tourists developed signs of mountain sickness. What factor plays the main role in the development of this pathology?
- A Decreased partial pressure of oxygen in the air
- B The rate of altitude gain
- C Extreme physical exertion
- D The difference in day and night temperatures
- E Solar radiation
Правильна відповідь: A. Decreased partial pressure of oxygen in the air
Пояснення
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