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If white crystals are seen on plants but liquid droplets are not seen, what is the correct identification?

Answer and explanation

Correct answer: Frost

Direct answer: B, frost, is correct. At night, a plant surface may cool greatly. If its temperature reaches the freezing point or falls below it, moisture can deposit as solid ice crystals. These crystals appear white and are not liquid droplets. Dew is also formed on a cool surface, but it appears as liquid water when the surface remains above freezing. Fog and mist are collections of tiny droplets suspended in air, not a white crystalline coating on a plant. A is wrong because dew is liquid. B is correct because frost is frozen deposition on a cold surface. C and D are wrong because fog and mist reduce visibility in the air rather than forming a crystalline layer on plants. Memory cue: dew is wet; frost is icy.

Related tags

FrostDewIce CrystalsForms Of Condensation: DewFogAnd MistForms Of Condensation Dew Frost Fog And MistWater In The AtmosphereGeographyClass 12 Mcq

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