Biology
Grade-7
Easy

Question

Pick the odd one out.

  1. Nitrogen
  2. Phosphorous
  3. Potassium
  4. Rhizobium

hintHint:

  • Rhizobium is a biofertilizer

The correct answer is: Rhizobium


    • Rhizobium  are the fungi that form an endosymbiotic relationship with roots of legumes
    • Rhizobium are the biofertilizers that fixes atmospheric nitrogen and make it available to the plants
    • Nitrogen,  phosphorus,  potassium comes under inorganic fertilizer. 

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