The most abundant element present in the plants is
Or
Which of the following is not absorbed through soil

Options

A. Nitrogen
B. Manganese
C. Iron
D. Carbon

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for the most abundant element present in plants and also which of the given options is not absorbed through the soil.

2. **Identifying the Elements**: The options provided are nitrogen, manganese, iron, and carbon. We need to evaluate these elements in the context of their abundance in plants and their absorption through soil.

3. **Analyzing Carbon**: Carbon is a fundamental element for all living organisms and is primarily obtained by plants through the process of photosynthesis from carbon dioxide in the atmosphere, not through soil.

4. **Determining Abundance**: In terms of abundance in plants, carbon is the most abundant element. Following carbon, hydrogen and oxygen are also significant but in lesser amounts compared to carbon.

5. **Conclusion**:
- The most abundant element in plants is **carbon**.
- The element that is **not absorbed through the soil** is also **carbon**.

### Final Answer:
- The most abundant element present in plants is **carbon**.
- The element that is not absorbed through the soil is **carbon**.

---