Question

define macronutrients and micronutrients

Answer 1

Macro-nutrients are required in large concentrations and micro nutrients are required in very small amounts.
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Answer 2

Answer:

Macronutrients : The mineral elements required by the plants in large amount are called macronutrients. Carbon, nitrogen, oxygen, hydrogen, phosphorus, sulphur, potassium, magnesium and calcium are macronutrients.

Micronutrients : The mineral elements required by plants in very small amount are called micronutrients. Iron, copper, zinc, molybdenum, manganese, chlorine and boron are micronutrients.