Coast Guard Exams
Question 1227Navigation General70% to pass

Which type of fog occurs on clear nights with very light breezes and forms when the earth cools rapidly?

AI Explanation
The correct answer is B) radiation fog. Radiation fog occurs on clear nights with very light breezes when the earth cools rapidly, causing the air near the surface to cool below its dew point temperature. This allows water vapor in the air to condense, forming a dense fog. Radiation fog is distinct from other types of fog, such as advection fog (formed by warm air moving over a cool surface) or frontal fog (formed by the meeting of two air masses). The other options are incorrect because they do not match the specific conditions described in the question. Advection fog, convection fog, and frontal fog form under different meteorological circumstances.

Ready to test your knowledge?