Test yourself: 5 hard theory questions, free Airspace, weather, regs and aerodynamics, FAA-style — instant score, every answer explained. No signup.
Free testeasysynoptic
On a surface synoptic chart, closely spaced isobars indicate:
A
Calm conditions
B
Strong winds
C
High temperature
D
Clear skies
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See where you stand: 5 hard questions, instant score, every answer explained.