allery**Macronutrients** (required in large quantities) for plants include:
ACu, Zn, B, Mn
BC, H, O, N, P, S, Mg, K, Ca
COnly Mg and Fe
DOnly C, H, O
Answer & Solution
Correct answer: B. C, H, O, N, P, S, Mg, K, Ca
Macronutrients (>10 mmol/kg of dry matter): C, H, O, N, P, S, K, Ca, Mg.
**Micronutrients (trace):** Cu, Zn, B, Mn, Mo, Fe, Cl, Ni.
Both essential but in different quantities.
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