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When rainfall is very high and soluble bases are washed downward what may happen to soil?

Answer and explanation

Correct answer: Soil may become more acidic

Very high rainfall causes leaching, through which soluble bases such as calcium, magnesium, potassium and sodium move down to lower soil layers. As these basic cations are removed, the relative effect of hydrogen ions increases, so the soil may become more acidic. Option A is the opposite outcome because washing away bases does not increase alkalinity. Exam tip: Link heavy rainfall and intense leaching with acidic soils.

Related tags

Soil FormationLeachingSoil AcidityHeavy RainfallGeomorphic ProcessesSoil Formation ProcessesGeographyClass 11 Mcq

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