What is common between fog and cloud?
Fog and cloud can both form by condensation. Exam tip: remember height difference and droplet similarity.
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SubjectsGeography
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Fog and cloud can both form by condensation. Exam tip: remember height difference and droplet similarity.
View question detailsStrong wind can reduce surface cooling and moisture build-up. Exam tip: consider calm air good for dew.
View question detailsFrost occurs as ice crystals or solid water. Exam tip: connect solid condensed water with frost.
View question detailsIn fog, tiny water droplets remain suspended in air. Exam tip: connect fog with suspended droplets.
View question detailsMist is lighter, so it blocks vision less than fog. Exam tip: remember less dense mist.
View question detailsBefore dew forms, air near the surface reaches close to saturation. Exam tip: treat saturation as a condition for condensation.
View question detailsWhen moist air cools and becomes saturated, fog can form. Exam tip: connect cool moist air with fog.
View question detailsLow winter temperatures increase the chance of frost. Exam tip: connect frost with the cold season.
View question detailsDew is droplets on a surface, while fog is droplets suspended in air. Exam tip: write the location-based difference.
View question detailsAbove freezing, water vapour can form liquid droplets as dew. Exam tip: connect above freezing with dew.
View question detailsSolar heating moves air away from saturation and droplets can evaporate. Exam tip: connect fog clearing with heating.
View question detailsA clear cool night can bring the surface to dew point. Exam tip: connect cool clear night with dew.
View question detailsFrost appears as an icy deposit on a cold surface. Exam tip: remember frost as icy deposit.
View question detailsSmall water droplets in mist slightly reduce visibility. Exam tip: connect mist with slight haze.
View question detailsDew forms when water vapour present in the air condenses into tiny water droplets on a cool surface, usually at night. Therefore, water vapour is essential. Dust particles may help condensation in clouds, but the key requirement for dew is moisture in the air and cooling of the surface to the dew point. Exam tip: remember that dew is condensation of water vapour on a surface.
View question detailsFog reduces viewing distance on runways and in air. Exam tip: connect fog and aviation with visibility.
View question detailsBoth are changes of water vapour related to cold surfaces. Exam tip: treat dew and frost as forms of condensation.
View question detailsFog can look hazy or whitish because of tiny droplets. Exam tip: remember the visibility effect more than appearance.
View question detailsOn a very warm surface, vapour does not deposit as ice. Exam tip: remember freezing surface is needed for frost.
View question detailsBoth can reduce seeing distance because of tiny droplets in air. Exam tip: connect both with visibility.
View question detailsQUIZ COMPLETE