Geography
Forms of condensation: dew, frost, fog, and mist
Practice questions
Dew and frost both form on surfaces so why are they differentiated?Why can visual warning be weaker than sound warning in dense fog?In which situation can mist appear to turn into fog?If frost is forecast why do farmers protect crops at night?When does the chance of dew-like moisture becoming frost increase?Which statement correctly states both similarity and difference between mist and fog?If fog seems to lift or clear after sunrise what is the reason?Why can relative humidity be high near the surface during dew formation?Why is low temperature alone not enough for frost formation?Why are fog and mist considered forms of condensation?Why can frost remain longer on shaded grass than on sunny open spots in a winter morning?Why can dew on low grass and frost on a very cold nearby metal surface occur on the same night?If water droplets are found on cold grass on a hill slope in the morning but no visible haze is present in air what is the correct identification?If the surface temperature is below dew point but above freezing point which condensation form is most likely to form?If the surface is below freezing point and water vapour directly changes into ice crystals this is an example of what?Why can fog remain longer in a valley during the morning?Which statement best explains the visibility-based difference between mist and fog?Why is a clear and calm night especially favourable for dew formation?Why may dew formation be less likely on a cloudy night?How can strong wind weaken the process of dew formation?