Geography
Forms of condensation: dew, frost, fog, and mist
Practice questions
What is the real reason for low visibility in fog?In which condition will frost not form but dew may form?Why can fog become denser in urban areas?Why will little dew form even if a surface cools strongly when the air is very dry?Which criterion is most useful in practical weather observation to distinguish fog from mist?Why does dew formation decrease when clouds cover the sky at night?What is the main difference between frost and snowfall?Why does dew disappear quickly after sunrise?If a hill station has a cold, clear, calm night with moist air, which surface condensation is most likely in the morning?Which statement gives the required physical condition for fog formation most accurately?On which surface can frost be more clearly visible?Why does rainfall not occur despite droplets being present during mist?If frost warning is issued for a field, why may farmers use light irrigation or smoke at night?Which common condition is necessary for dew, frost, fog, and mist?Which statement explains the difference between fog and mist most scientifically?Why may more dew appear on an exposed car roof at night than under a tree?If water vapour first condenses as liquid on a cold surface and then freezes, what may the result be called?Which form is more clearly present in air near the ground rather than on the ground surface?A thin whitish haze lies above a road in the morning, but visibility is not severely reduced. What does it indicate?Why is moisture alone not enough for fog formation?