Test yourself: 5 hard theory questions, free Airspace, weather, regs and aerodynamics, FAA-style — instant score, every answer explained. No signup.
Free testmediumfronts
An occluded front forms when:
A
A cold front overtakes a warm front
B
A warm front overtakes a cold front
C
Two warm fronts merge
D
A front becomes stationary
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See where you stand: 5 hard questions, instant score, every answer explained.