Solved UPSC CDS/OTA Question
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Q · Atmosphere and Cyclonesmedium · 45s
Which process directly changes water vapor into ice crystals?
TopicAtmosphere and Cyclones
Question Typemultiple choice
Difficultymedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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Sublimation is a unique phase change where water vapor bypasses the liquid phase and turns directly into solid ice crystals. This process typically occurs in cold atmospheric conditions where ice crystals form in clouds without first becoming liquid water. Sublimation is important in the formation of certain types of clouds like cirrus, which consist of ice crystals.
Final Answer: Option B - Sublimation