Geography
Forms of condensation: dew, frost, fog, and mist
Practice questions
If fog forms only over a river but not over nearby dry land what is the most appropriate reason?If a frost layer first melts in sunlight and then disappears what is the correct process sequence?When dense fog forms what is the practical result of increased droplet concentration in air?Which local condition is most decisive for dew formation?Which temperature relation is more important in frost formation than in dew formation?On what basis is the main exam-worthy difference between fog and mist made?Why is dew more likely on a clear calm night?If moist air reaches cold grass and the grass temperature falls to the dew point above (0^\circ C), what will form?If surface temperature is below freezing and water vapour changes directly into ice crystals, this is an example of what?Why can radiation fog persist longer in valleys?In which condition is advection fog most likely to form?When can steam fog or evaporation fog form?What is the fundamental difference between dew and fog?In which situation may the surface remain dry instead of forming dew?How can abundance of condensation nuclei affect urban fog?Why can temperature inversion make fog dense?If visibility becomes very low and nearly less than (1) kilometre, it is generally associated with what?Why is mist called a lighter form than fog?Why can dew disappear quickly after sunrise?Why can frost be more harmful than dew in agriculture?