Which of the following pairs of type of nutrient – nutrient is correctly matched?

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Accepted Answer

1. **Macronutrients** are needed in large amounts, e.g. $N, P, K, Ca, Mg, S$.
2. **Micronutrients** (trace elements) are needed in very small amounts, e.g. $Fe, Mn, Zn, Cu, Mo, B, Cl$.
3. Check options:
   - (a) $N$ is a macronutrient → wrong.
   - (b) $Cu$ is a micronutrient → wrong.
   - (c) $Mo$ is a micronutrient → correct.
   - (d) $Zn$ is a micronutrient → wrong.
4. Therefore the correct pair is (c).

FINAL_ANSWER: c

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