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If a white icy layer appears on plants which process may be linked with it?

Answer and explanation

Correct answer: Deposition of water vapour into ice crystals

Direct answer: B. A white icy layer on leaves or plants is characteristic of frost. In sufficiently cold conditions, water vapour can change directly into solid ice crystals on a surface; this gas-to-solid change is called deposition. The ice crystals make the layer appear white. A is wrong because evaporation changes liquid water into vapour and would remove liquid, not create an icy coating. C may occur near sea spray but does not explain the normal formation of frost on plants. D is unrelated and heating would oppose ice formation. The exact process may also be described generally as frost formation through condensation in a broad school-level treatment, but the visible ice layer and the direct vapour-to-ice change point to deposition. Memory cue: white frozen coating on plants means frost, not dew.

Related tags

FrostDepositionIce CrystalsPlantsForms Of Condensation: DewFogAnd MistForms Of Condensation Dew Frost Fog And MistWater In The AtmosphereGeography

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