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What can be the most correct reason why rainfall may not occur even after cloud formation?

Answer and explanation

Correct answer: Droplets fail to grow to falling size

The correct answer is B: cloud droplets may fail to grow large and heavy enough to fall. Cloud formation means that tiny water droplets or ice particles are suspended in air; it does not automatically mean that precipitation will reach the ground. Droplets must grow through collision and coalescence or through ice-crystal processes. If they remain very small, upward air currents can keep them suspended, or they may evaporate before reaching the surface. A is wrong because clouds commonly contain droplets or ice particles. C is wrong because saturation supports condensation, not always the prevention of rain. D is wrong because clouds are made of water droplets and/or ice crystals, not only oxygen. Cue: cloud is not automatically rain.

Related tags

Cloud DropletsPrecipitation ProcessRainfall FormationClouds And PrecipitationWater In The AtmosphereGeographyClass 12 Mcq

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