Which statement best describes advection fog as a weather phenomenon?

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Multiple Choice

Which statement best describes advection fog as a weather phenomenon?

Advection fog forms when warm, moist air is transported horizontally by the wind over a surface that is cooler than the air itself. As this air moves over the cooler surface, it is cooled to its dew point, causing condensation and fog to develop near the surface. The essential point is the horizontal movement of moist air over something cooler, which triggers saturation and Fog. This distinguishes it from radiational fog, which forms from nighttime surface cooling in place without horizontal air movement, from fog caused by moisture added by evaporation (often related to day conditions but not the advection mechanism), and from fog created by vertical mixing of moist and dry air, which isn’t driven by horizontal transport over a cooler surface.

Advection fog forms when warm, moist air is transported horizontally by the wind over a surface that is cooler than the air itself. As this air moves over the cooler surface, it is cooled to its dew point, causing condensation and fog to develop near the surface. The essential point is the horizontal movement of moist air over something cooler, which triggers saturation and Fog. This distinguishes it from radiational fog, which forms from nighttime surface cooling in place without horizontal air movement, from fog caused by moisture added by evaporation (often related to day conditions but not the advection mechanism), and from fog created by vertical mixing of moist and dry air, which isn’t driven by horizontal transport over a cooler surface.

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