Experts plz solve 3

Dear Student, 

Option (c) is the correct answer.

Macronutrients are those which require in large amount for the proper growth and development of plants. 

Nitrogen, phosphorus, potassium are considered as the primary macronutrients and calcium, sulphur, magnesium are considered as secondary macronutrients. 
The rest like boron, manganese, chlorine, iron, zinc, copper, nickel, molybdenum are micronutrients. 


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