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Q98 (CDS-II/2008) Geography › World Physical Geography › Atmospheric moisture Answer Verified

Mist is a result of which one of the following?

Result
Your answer: —  Â·  Correct: A
Explanation

Mist is a natural phenomenon primarily caused by the process of condensation [t6]. Condensation occurs when water vapor in the air is transformed into liquid water droplets due to a loss of heat [c1]. This typically happens when warm, moist air is cooled below its dew point, often by coming into contact with a cold surface or through the rising of air up mountain slopes [c2][c5]. When this cooling occurs at ground level, the excess water vapor condenses around microscopic particles like dust or salt (hygroscopic nuclei) to form tiny suspended droplets [c3][c5]. While fog and mist are similar, mist is characterized by a higher moisture content and visibility greater than one kilometer but less than two kilometers [c2]. Therefore, mist is the visible result of water vapor condensing into minute liquid droplets near the Earth's surface [c3][t7].

Sources

  1. [1] Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 24: Hydrological Cycle (Water Cycle) > 24.3. Condensation > p. 329
  2. [2] Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 24: Hydrological Cycle (Water Cycle) > Mist > p. 333
  3. [3] Certificate Physical and Human Geography , GC Leong (Oxford University press 3rd ed.) > Chapter 14: Climate > TYPES OF PRECIPITATION > p. 136
  4. [4] Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 24: Hydrological Cycle (Water Cycle) > 24.3. Condensation > p. 330
  5. [5] https://en.wikipedia.org/wiki/Mist
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