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224 - Gas Balloon Pilot Exam BPL - Which process may result in an inversion layer at about 5000 ft (1500 m) height?

Question 224 - Meteorology - Exam BPL Gas - Balloon Pilot License

Intensive sunlight insolation during a warm summer day
Ground cooling by radiation during the night
Advection of cool air in the upper troposphere
Widespread descending air within a high pressure area

Training tests and timed exam simulations Exam BPL Gas - Balloon Pilot License