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In the water cycle, what physical process is measured using an evaporometer?

Answer and explanation

Correct answer: Evaporation rate from an open water surface

Correct answer: B. An evaporometer is an instrument used to estimate the rate at which water changes from liquid to vapour from an exposed surface. Depending on its design, it may use an open water container, a porous surface, or another standardized evaporating surface. The measurement represents physical evaporation, which is driven by factors such as temperature, sunlight, humidity, wind, and the available surface area. Transpiration is water vapour loss specifically through plant surfaces and stomata, so it is not the direct measurement here. Infiltration is the entry of water into soil, and cloud movement is an atmospheric transport phenomenon. Therefore B is the precise choice. Memory cue: “evapo-meter” measures evaporation; plant water loss is transpiration.

Related tags

EvaporometerEvaporationWater-CycleHydrological CycleThe Living WorldBiologyClass 11 Mcq

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