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Question 1 of 10
Pbg
medium
What is the 'barometric tendency' and how do gas balloon pilots use it?
A
A. The rate of change of atmospheric pressure over time â a falling barometer indicates approaching low pressure and deteriorating weather; a rising barometer indicates improving conditions
B
B. The difference in barometric pressure between the launch site and destination
C
C. The tendency of the barometric altimeter to drift during long flights
D
D. The rate of gas pressure change inside the balloon envelope
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