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What is the most suitable combined reason for rapid evaporation on a hot and dry day?

Answer and explanation

Correct answer: High temperature and low relative humidity

The correct answer is A: high temperature and low relative humidity. Evaporation occurs when water molecules escape from a liquid surface into the air. Higher temperature gives surface molecules more kinetic energy, so more of them can escape. Low relative humidity means the surrounding air is far from saturation and can accept additional water vapour more readily. Together these conditions create a strong tendency for rapid evaporation. B acts in the opposite direction: cool air gives molecules less energy and humid air has little capacity for extra vapour. C also suppresses evaporation because saturated air is already near its vapour limit and calm conditions do not remove moist air. D suppresses it through a cold surface and limited air movement. Wind can further enhance evaporation, but it is not necessary for A to be the best answer. Memory cue: hot supplies energy, dry air supplies capacity.

Related tags

GeographyEvaporationTemperatureRelative HumidityHumidityAnd CondensationHumidity Evaporation And CondensationWater In The AtmosphereClass 12 Mcq

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