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What is the most correct contribution of tiny dust particles in a cloud?

Answer and explanation

Correct answer: They can provide surfaces for condensation

Correct answer: A. Tiny dust particles can act as condensation nuclei, meaning small surfaces on which water vapour can begin to condense when the air becomes sufficiently moist and cool. The particle itself does not become the rain; rather, water gathers around it and may form a cloud droplet. As droplets collide and grow, some may eventually become precipitation. B is wrong because dust does not always remove water vapour; it can assist the change from vapour to liquid. C is impossible because dust does not turn a cloud into lava. D is wrong because condensation nuclei can influence cloud and precipitation formation. The effectiveness of a particle depends on its properties and atmospheric conditions. Memory cue: a nucleus is a tiny starting surface for a droplet, not the droplet’s whole substance.

Related tags

DustCondensation NucleiCloud FormationClouds And PrecipitationWater In The AtmosphereGeographyClass 12 Mcq

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