Soil formed after leaching and rich in Al and Fe is

Options

A. Alluvial
B. Laterite
C. Loam
D. Both A and B.

Answer

To solve the question "Soil formed after leaching and rich in Al and Fe is," we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Process of Leaching**:
- Leaching is the process where water-soluble substances are washed out from the soil. This typically occurs in areas with heavy rainfall.

**Hint**: Think about how water affects soil composition over time.

2. **Identify the Characteristics of Soil After Leaching**:
- After leaching, the soil often loses certain minerals and nutrients, but it can become enriched with other elements, particularly aluminum (Al) and iron (Fe).

**Hint**: Consider which minerals are typically left behind after the leaching process.

3. **Review the Types of Soil**:
- The options provided are aluminum, laterite, loam, or both A and B. We need to determine which of these soils is formed after leaching and is rich in Al and Fe.

**Hint**: Recall the specific properties and formation processes of each type of soil listed.

4. **Identify Laterite Soil**:
- Laterite soil is formed in tropical regions with high rainfall. It is characterized by its high aluminum and iron content, which is a result of leaching from parent rocks.

**Hint**: Think about where you might find this type of soil and its typical color.

5. **Conclusion**:
- Based on the characteristics and the process of formation, the soil formed after leaching that is rich in aluminum and iron is identified as **laterite**.

**Final Answer**: Laterite

### Summary of Steps:
1. Understand leaching.
2. Identify soil characteristics post-leaching.
3. Review soil types.
4. Recognize laterite soil.
5. Conclude with the answer.