Which of the following is a micronutrient?

Options

A. Nitrogen
B. Manganese
C. Boron
D. Calcium

Answer

To determine which of the following is a micronutrient, we need to analyze the options provided: Nitrogen, Magnesium, Boron, and Calcium.

**Step 1: Understand the definitions**
- Macronutrients are nutrients that plants require in larger quantities. These include Nitrogen, Phosphorus, Potassium, Calcium, Magnesium, and Sulfur.
- Micronutrients are nutrients that plants need in smaller amounts. These include elements like Iron, Manganese, Boron, Zinc, Copper, Molybdenum, and Chlorine.

**Step 2: Analyze each option**
- **Nitrogen**: This is a macronutrient essential for plant growth and is required in large amounts.
- **Magnesium**: This is also considered a macronutrient as it is needed in relatively larger quantities compared to micronutrients.
- **Boron**: This is a micronutrient, which means it is required in smaller amounts for plant health.
- **Calcium**: Like Nitrogen and Magnesium, Calcium is classified as a macronutrient.

**Step 3: Identify the micronutrient**
From the analysis, the only option that qualifies as a micronutrient is Boron.

**Final Answer: Boron is a micronutrient.**

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