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  9. Q55

UKPSC PCS 2010 · Question 55 of 138

Which one of the following is used as bio-fertilizer ?

Environment

  1. ANeem
  2. BAzollaCorrect
  3. CUrea
  4. DPotassium

Answer: B. Azolla

Explanation

Azolla is used as a bio-fertilizer.

Source: UKPSC Lower PCS Prelims 2010 (Combined Lower Subordinate Services Exam), held 2011

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