Task: Class Definition Understanding (ontology: Earth_Environment/SWEET)

Which of the following definitions best describes 'mixing fog'?

A. Particles suspended, reducing visibility by scattering light; often a mixture of aerosols and photochemical smog.
B. Fog formed as a result of evaporation of water that is warmer than the air.
C. A name applied to a wet sea fog or very fine drizzle that drifts in from the sea in coastal districts of eastern Scotland and northeastern England. It occurs most frequently in summer.
D. Fog, light and of short duration, produced by the mixing of two moist but nonsaturated air masses with different temperatures.

Answer: Fog, light and of short duration, produced by the mixing of two moist but nonsaturated air masses with different temperatures.