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If a white icy layer is seen on leaves in the morning, what does it indicate?

Answer and explanation

Correct answer: Frost

Correct answer: A, frost. Frost is a deposit of ice crystals that forms when a cold surface, such as a leaf, reaches or falls below the freezing point and the nearby moisture changes directly into ice. The white, rigid or icy appearance is the important clue. Dew is also a form of condensation, but it consists of liquid water drops deposited on a surface when the temperature is above freezing. A is correct because it names the solid frozen deposit. B is wrong because dew is liquid and looks like wet beads, not a white icy coating. C is wrong because dust is not formed from atmospheric moisture and does not specifically indicate freezing. D is wrong because rainfall consists of falling liquid drops and does not describe a thin icy layer on leaves. Memory cue: dew is wet water; frost is frozen water.

Related tags

FrostIce CrystalsCondensationForms Of Condensation: DewFogAnd MistForms Of Condensation Dew Frost Fog And MistWater In The AtmosphereGeographyClass 12 Mcq

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