Air pressure is sometimes measured in inches of mercury. If sea level air pressuremeasures as 29.2 inches of mercury, what is the approximate difference, in inchesof mercury, between the pressure at sea level and the pressure at the death zone threshold?
A. 7.6
B. 10.2
C. 19.0
D. 21.6
Answer:C
Air pressure is sometimes measured in inches of mercury. If sea level air pressuremeasures as 29.2 inches of mercury, what is the approximate difference, in inchesof mercury, between the pressure at sea level and the pressure at the death zone threshold?
A. 7.6 B. 10.2 C. 19.0 D. 21.6
Explanation: C