what is the oxygen pressure in the death zone compared to the amount of oxygen at sea level? 1/4 1/2 1/3 2/3

what is the oxygen pressure in the death zone compared to the amount of oxygen at sea level? 1/4 1/2 1/3 2/3
Answer
Brief Explanations:
The oxygen pressure in the Death - Zone (above 8,000 meters in mountaineering) is approximately one - third of the oxygen pressure at sea level due to the decrease in atmospheric pressure with altitude.
Answer:
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