How can adding organic manure improve highly basic soil?
Answer and explanation
Correct answer: Mild acidic substances may form during decomposition
The governing concept is correction of soil pH through natural chemical changes. Organic manure decomposes through microbial activity and may produce organic acids and other mildly acidic substances. These can react with or lessen excess basicity, improving conditions for plant growth. Hence option A is correct. Manure does not produce sodium metal, remove every drop of water, or transform soil into glass; those claims are unrelated to decomposition.
Frequently asked questions
What is the correct answer to this question?
Mild acidic substances may form during decomposition
Why is this the correct answer?
The governing concept is correction of soil pH through natural chemical changes. Organic manure decomposes through microbial activity and may produce organic acids and other mildly acidic substances. These can react with or lessen excess basicity, improving conditions for plant growth. Hence option A is correct. Manure does not produce sodium metal, remove every drop of water, or transform soil into glass; those claims are unrelated to decomposition.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Acids, Bases, and Salts.
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