Question ATPL - Airline Transport Pilot license - Meteorology

What is the difference between radiation fog and advection fog ? - ATPL

Radiation fog forms due to surface cooling at night in a light wind. Advection fog forms when warm humid air flows over a cold surface.

Radiation fog is formed by surface cooling in a calm wind. Advection fog is formed by evaporation over the sea.

Radiation fog forms due to night cooling and advection fog due to daytime cooling.

Radiation fog forms only on the ground, advection fog only on the sea.