Test yourself: 5 hard theory questions, free Airspace, weather, regs and aerodynamics, FAA-style — instant score, every answer explained. No signup.
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Advection fog forms when:
A
Warm, moist air moves over a cold surface
B
Air cools by radiation at night
C
Cold air moves over warm water
D
The ground is heated by the sun
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See where you stand: 5 hard questions, instant score, every answer explained.