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If a storm cloud contains supercooled droplets aloft, why does the chance of hail formation increase?

Answer and explanation

Correct answer: They can freeze onto ice particles and build layers

Correct answer: A. Supercooled droplets are liquid water droplets whose temperature is below the normal freezing point but which have not yet frozen. In a storm cloud, strong updrafts can keep these droplets aloft and bring them into contact with ice crystals or small hail embryos. On impact, the droplets may freeze, adding a layer of ice to the growing particle. Repeated collisions and freezing can make the particle large and dense enough to become hail, especially when the updraft supports repeated cycles. A is correct because freezing liquid droplets provide the material for layered hail growth. B is wrong because droplets do not remove all air. C is wrong because they add liquid water to the cloud rather than dry it. D is wrong because freezing produces ice, not rock. Memory cue: supercooled water is liquid material waiting to freeze onto ice; repeated coating helps hail grow.

Related tags

Supercooled DropletsHail GrowthIce ParticlesStorm CloudsClouds And PrecipitationWater In The AtmosphereGeographyClass 12 Mcq

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