In soil profile, the zone of eluviation is

Options

A. O-zone
B. A-zone
C. B-zone
D. C-zone

Answer

To determine the zone of eluviation in a soil profile, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Soil Profile**: Soil is structured in layers called horizons, which are formed through the weathering of rocks and the accumulation of organic matter.

2. **Identify the Zones**: The soil profile typically consists of several zones:
- **O Zone**: This is the organic layer, rich in decomposed organic matter (humus).
- **A Zone**: Also known as the topsoil, it contains a mixture of organic material and minerals. This layer is crucial for plant growth.
- **B Zone**: Known as the subsoil, it is characterized by the accumulation of minerals leached from the upper layers.
- **C Zone**: This layer consists of weathered parent material from which the soil is formed.

3. **Define Eluviation**: Eluviation refers to the process of leaching or the removal of dissolved or suspended materials from one layer of soil to another, primarily due to water movement.

4. **Locate the Zone of Eluviation**: The zone where eluviation occurs is primarily the **A Zone**. This is where organic and inorganic materials are removed due to water movement, leading to the leaching process.

5. **Conclusion**: Therefore, the zone of eluviation in the soil profile is the **A Zone**.

### Final Answer:
The zone of eluviation in the soil profile is the **A Zone**.

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