What process results in the formation of advection fog?

Question

Question Quiz SPL - Sailplane Pilot License - Meteorology

QuizVDS · Accepted Answer

Warm, moist air is moved across cold ground areas

QuizVDS · Answer

Cold, moist air is being moved across warm ground areas

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Cold, moist air mixes with warm, moist air

QuizVDS · Answer

Prolonged radiation during nights clear of clouds

Id 358 - SPL - What process results in the formation of "advection fog"?