Elevations above 8,000 meters are said to be in the "death zone," a range of elevationsin which oxygen levels are not high enough to sustain human life. What is the approximateair pressure (as a percent of sea level pressure) at the death zone threshold? (Note:1 meter ≈ 3.28 feet)
A. 35%
B. 50%
C. 74%
D. 92%
Answer:A
Elevations above 8,000 meters are said to be in the "death zone," a range of elevationsin which oxygen levels are not high enough to sustain human life. What is the approximateair pressure (as a percent of sea level pressure) at the death zone threshold? (Note:1 meter ≈ 3.28 feet)
A. 35% B. 50% C. 74% D. 92%
Explanation: A