Which metal among the following is present in green plants?

Options

A. Zinc
B. Aluminium
C. Magnesium
D. Tin

Answer

To determine which metal is present in green plants from the given options, we will analyze each option step by step.

### Step-by-Step Solution:

1. **Identify the Options**: The options provided are Zinc, Aluminium, Magnesium, and Tin.

2. **Evaluate Zinc**:
- Zinc is known to be an essential trace element for many organisms, but it is not a primary component of green plants.
- **Conclusion**: Zinc is not the correct answer.

3. **Evaluate Aluminium**:
- Aluminium is not a metal that is typically found in significant amounts in green plants. Instead, it is more commonly found in soil and minerals.
- **Conclusion**: Aluminium is not the correct answer.

4. **Evaluate Magnesium**:
- Magnesium is a crucial metal found in green plants. It is a central component of chlorophyll, the green pigment responsible for photosynthesis.
- **Conclusion**: Magnesium is the correct answer.

5. **Evaluate Tin**:
- Tin is not known to play any significant role in plant biology or be present in green plants.
- **Conclusion**: Tin is not the correct answer.

### Final Answer:
The metal that is present in green plants is **Magnesium**.

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