9th Class Science Improvement in food resources

  • question_answer 13)
    What are the macronutrients and why are they called macronutrients?  

    Answer:

    Macronutrients are essential elements which are required by plants in major quantities. Some of the main macronutrients are: (i) N, P, S which are present in proteins. (ii) Ca is present in cell wall. (iii) Mg is a part of chlorophyll.


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