Geography
Forms of condensation: dew, frost, fog, and mist
Practice questions
Why may a farmer consider irrigation or covering during a frost warning?If fog is greater at the foot of a hill and less at the summit what conclusion is appropriate?Why does visibility fall sharply when droplet number increases in dense fog?If lower air is cold but strong mixing continues why can mist remain weak?If dew is on the surface but the air is clear what is the best conclusion?When can the chance of dew formation increase near an open water surface?If droplets are present in air but have not grown to raindrop size which form is more likely?Why is moisture also considered along with minimum temperature in frost forecasting?If moisture is high but the surface is very warm what will hinder dew formation?If dense fog seems to sit low on a road what atmospheric condition can it indicate?Which group of clues is most useful for scientific identification of dew frost fog and mist?If dew on leaves and frost on metal occur on the same night what is the deeper explanation?What is the basic reason for considering both fog and mist as forms of condensation?Why is dew generally not considered as harmful to crops as frost?If fog is dense only in an industrial area and lighter outside which local cause is possible?If the surface cools rapidly at night while the air above remains comparatively warmer, what mainly causes dew on the surface?Which condition indicates fog formation rather than frost formation?If visibility is reduced but road signs can still be read from a moderate distance, which condensation form is most likely?Why can fog droplets form more easily when dust or smoke is present?What is the correct difference between dew and fog based on depth of saturation?