Air Lawmedium#44
The three phases of the alerting service are:
A
ALERFA, DETRESFA, INTERFA
B
NORMA, ALERFA, EMERFA
C
WARNING, ALERT, DISTRESS
D
INCERFA, ALERFA, DETRESFA
CorrectExplanation
The three alerting phases are INCERFA (uncertainty), ALERFA (alert), and DETRESFA (distress).
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