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Lime is added to improve acidic soil. What problem can occur if too much lime is added?

Answer and explanation

Correct answer: Soil can become too basic

The governing concept is neutralisation and control of soil pH. Lime, commonly containing calcium carbonate or calcium hydroxide, is basic and is added in measured amounts to reduce excess acidity. If too much is applied, the soil pH can rise above the suitable range and the soil becomes excessively alkaline. This may reduce nutrient availability and harm plant growth. Therefore option A is correct; the other options are not consequences of adding lime.

Related tags

Soil PhLimeNeutralisationAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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