CDS 2026 (I) General Knowledge, question 8

Topic: Biology

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Q8

Consider the following statements with reference to manure and organic farming :

  1. Vermicompost is rich in organic matter and nutrients.

  2. Biofertilizers and bio-pesticides are not used in organic farming.

  3. Crop rotation is beneficial in controlling insects, pests and weeds.

Which of the statements given above is/are correct ?

  1. (a) 1 only
  2. (b) 1 and 3 onlyCorrect answer
  3. (c) 2 and 3 only
  4. (d) 1, 2 and 3

Solution.

Answer: (b) 1 and 3 only

  1. Statements 1 and 3 are correct.
  2. Vermicompost adds organic matter and nutrients, while crop rotation interrupts pest life cycles and can suppress weeds.
  3. Statement 2 is false: approved biofertilizers and biopesticides are compatible with organic farming.