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      Question

      Which of following group of plant nutrients is as

      structural elements?
      A Nitrogen, Phosphorus and Potassium Correct Answer Incorrect Answer
      B Calcium, Magnesium and Sulphur Correct Answer Incorrect Answer
      C Carbon, Hydrogen and Oxygen Correct Answer Incorrect Answer
      D Zinc, Iron and Manganese Correct Answer Incorrect Answer

      Solution

      C, H and O are non-ionic elements called structural elements. They are obtained from CO2and H2O that help in building the bulk dry mass (biomass) of the plant.Β 

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