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Why can adding organic matter gradually improve basic soil?

Answer and explanation

Correct answer: Organic matter can decompose to form mildly acidic substances

The governing concept is acid–base balance in soil. When organic matter decomposes, microorganisms may produce humus and weak organic acids. These substances can gradually lower excessive alkalinity and make the soil more suitable for plant growth. Therefore, option A is correct. Organic matter does not turn soil into metal, remove all water, or always increase basicity, so options B, C, and D are incorrect.

Related tags

Basic-SoilOrganic-MatterSoil-PhClass10AcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And Behaviour

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