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If the surface temperature is above freezing, what is more likely to form instead of frost?

Answer and explanation

Correct answer: Dew

Answer: B, dew. Frost is associated with freezing conditions, when deposited water becomes ice. If a cool surface is below the dew point but remains above freezing, water vapour can condense into liquid droplets instead. Those droplets are called dew. B is correct because it matches a non-freezing condensation product. A is wrong because snow crystals require ice-forming conditions and are not the expected surface deposit when the temperature is above freezing. C is wrong because lava is molten rock and has no connection with atmospheric condensation. D is wrong because a dust storm involves wind lifting dust, not water vapour forming droplets. The exact result also depends on moisture and cooling, but among the choices dew is the suitable answer. Memory cue: above freezing gives liquid dew; at or below freezing allows frost.

Related tags

DewFrostAbove FreezingCondensationForms Of Condensation: DewFogAnd MistForms Of Condensation Dew Frost Fog And MistWater In The AtmosphereGeography

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