Which of the following present in maximum percentage in living matter ?

Options

A. Carbon
B. Nitrogen
C. Oxygen
D. Potassium

Answer

To solve the question "Which of the following is present in maximum percentage in living matter?", we will analyze each option provided and determine the percentage of each element in living matter.

### Step-by-Step Solution:

1. **Identify the Elements**: The question provides several options, which we will evaluate. The common elements in living matter typically include Carbon, Nitrogen, Oxygen, and Potassium.

2. **Evaluate Carbon**:
- Carbon is a fundamental building block of life and is present in living organisms.
- The average percentage of Carbon in living matter is approximately **19.37%**.
- **Conclusion**: This is not the maximum percentage.

3. **Evaluate Nitrogen**:
- Nitrogen is essential for the formation of amino acids and nucleic acids.
- The average percentage of Nitrogen in living matter is about **5.14%**.
- **Conclusion**: This is also not the maximum percentage.

4. **Evaluate Oxygen**:
- Oxygen is crucial for cellular respiration and is a major component of water and organic molecules.
- The average percentage of Oxygen in living matter is approximately **62.80%**.
- **Conclusion**: This is the highest percentage among the options evaluated.

5. **Evaluate Potassium**:
- Potassium is important for various cellular functions but is considered a trace element.
- The average percentage of Potassium in living matter is about **4.9%**.
- **Conclusion**: This is the lowest percentage.

6. **Final Decision**:
- After evaluating all the options, it is clear that **Oxygen** has the highest percentage in living matter at **62.80%**. Therefore, the correct answer is **Oxygen**.

### Final Answer:
The element present in maximum percentage in living matter is **Oxygen**.

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