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b. Prelims Paper (GS) Paper – 1

(UPSC 2013) 33. Consider the following organisms

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  • May 27, 2015 at 6:01 pm #6081
    Wonder Boy
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      33. Consider the following organisms

      1. Agaricus

      2. Nostoc

      3. Spirogyra

       

      Which of the above is / are used as biofertilizer / biofertilizers

       

      (a) 1 and 2

      (b) 2 only

      (e) 2 and 3

      (d) 3 only

       

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