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A student added an acidic substance to already acidic soil. What effect is likely on plant growth?

Answer and explanation

Correct answer: Growth may be affected further

Plant growth depends on a suitable soil pH and on the availability of nutrients. If soil is already acidic, adding another acidic substance can lower its pH further and may make nutrient uptake or root health worse. Thus option A is the most appropriate conclusion. Neutralisation would require a suitable basic material, such as carefully applied slaked lime; the soil will not automatically become neutral or basic, and pH is not irrelevant.

Related tags

Soil PhPlant GrowthNeutralisationAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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