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In which situation can condensation be visible even without rainfall?

Answer and explanation

Correct answer: When vapour condenses as dew or fog on a surface or in the air.

Direct answer: A is correct. Condensation is the change of water vapour into liquid water or, in sufficiently cold conditions, solid ice. It does not automatically mean rainfall. If a moist surface cools to the dew point, vapour may form dew directly on grass, leaves, or a window. If moist air cools and tiny droplets remain suspended, mist or fog becomes visible. Rainfall occurs only when cloud particles grow large and heavy enough to fall, so it is one possible result, not the definition of condensation. B is wrong because completely dry air has little or no vapour to condense. C is wrong because a temperature above boiling generally favours vapour rather than visible condensation. D is wrong because particles often help droplets form; their absence does not define condensation. Memory cue: condensation can stay on a surface or float in air; precipitation must fall.

Related tags

CondensationDewFogForms Of Condensation: DewFrostAnd MistForms Of Condensation Dew Frost Fog And MistWater In The AtmosphereGeographyClass 12 Mcq

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