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Clouds are formed from what?

Answer and explanation

Correct answer: Tiny water droplets or ice particles

Correct answer: B, tiny water droplets or ice particles. Air contains invisible water vapour. When moist air rises or is otherwise cooled, its temperature may reach the dew point. The vapour then condenses on very small particles called condensation nuclei, forming countless tiny liquid droplets. If the cloud is cold enough, some or many particles may be ice crystals. These droplets and crystals remain suspended because they are extremely small and are supported by air movement. A is wrong because dust and smoke may help condensation but are not the main material of a cloud. C is wrong because dry air contains too little moisture for cloud formation. D is wrong because sunlight supplies energy but is not the substance forming clouds. Memory cue: a cloud is condensed water in the air, not a mass of smoke.

Related tags

GeographyCloudsCondensationWater-DropletsIce-CrystalsClouds And PrecipitationWater In The AtmosphereClass 12 Mcq

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