Nutrients required by organisms (typically referring to plants in this context) are classified as macronutrients and micronutrients based on the quantity required. Macronutrients are needed in relatively large amounts, while micronutrients are needed in smaller amounts. For plants, macronutrients include Nitrogen (N), Phosphorus (P), Potassium (K), Calcium (Ca), Magnesium (Mg), and Sulfur (S). Micronutrients include Iron (Fe), Manganese (Mn), Zinc (Zn), Copper (Cu), Boron (B), Molybdenum (Mo), and Chlorine (Cl). Among the options, Magnesium (Mg), Calcium (Ca), and Potassium (K) are macronutrients, while Iron (Fe) is a micronutrient.
The following is not a macronutrient:
Asked in WBCS Main Paper 4 2019 · Topic: Ecology (Ecology: Definition, Principles, and Levels of Organization)
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