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Class 12GeographyWater in the AtmosphereForms of condensation: dew, frost, fog, and mistExpertLevel 90

Why can fog persist longer in a valley during temperature inversion?

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Answer and explanation

Correct answer: Cold moist air is trapped below and mixing is reduced

Inversion prevents lower cold moist air from dispersing. Exam tip: remember valley fog and inversion together.

Tags

valley fogtemperature inversionpersistence

Frequently asked questions

What is the correct answer to this question?

Cold moist air is trapped below and mixing is reduced

Why is this the correct answer?

Inversion prevents lower cold moist air from dispersing. Exam tip: remember valley fog and inversion together.

Which subject and chapter does this question cover?

This is a Class 12 Geography question. Chapter: Water in the Atmosphere. Topic: Forms of condensation: dew, frost, fog, and mist.

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10 more MCQs
  1. 1Under which condition can fog form near a cold surface even under high pressure?
  2. 2In which condition does air convergence help more cloud formation?
  3. 3Under what condition can an air mass become stable and produce widespread mist or low clouds?
  4. 4In what form does dew appear?
  5. 5What should the surface temperature generally be for frost formation?
  6. 6Fog mostly forms in which part?
  7. 7Shining droplets on grass in the morning are an example of what?
  8. 8How is frost different from dew?
  9. 9Why does fog reduce visibility?
  10. 10Why does a clear and calm night help dew formation?
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