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Dust and salt particles act as which kind of nuclei for cloud formation?
ARadioactive
BMagnetic
CVolcanic
DHygroscopic
Answer & Solution
Correct answer: D. Hygroscopic
1. Water vapour condenses around them.
2. They are hygroscopic nuclei.
3. Clouds form as a result.
_Source: NCERT Class 11 Fundamentals of Physical Geography, Chapter 8, Composition and Structure of Atmosphere._
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