The transfer of minerals from top soil to sub-soil through soil water is called

Options

A. translocation
B. conduction
C. percolation
D. leaching

Answer

To solve the question regarding the transfer of minerals from topsoil to subsoil through soil water, we can analyze the given options step by step.

### Step-by-Step Solution:

1. **Understanding the Question**:
The question asks about the process by which minerals move from the topsoil to the subsoil through the medium of soil water.

2. **Analyzing the Options**:
- **Translocation**: This term refers to the movement of nutrients (like sugars) within the plant, particularly through the phloem. It does not pertain to the movement of minerals in soil.
- **Conduction**: This generally refers to the transfer of heat or electricity, and while it can be related to the movement of substances, it does not specifically describe the movement of minerals in soil.
- **Percolation**: This is the process by which water moves through the soil, but it does not specifically refer to the loss of minerals.
- **Leaching**: This term describes the process where water-soluble nutrients are washed out from the soil, primarily from the topsoil to deeper layers, which aligns with the question.

3. **Identifying the Correct Answer**:
Based on the definitions and relevance to the question, the correct answer is **leaching**. This process involves the loss of soluble nutrients from the topsoil through water movement, effectively transferring minerals to the subsoil.

### Final Answer:
The transfer of minerals from topsoil to subsoil through soil water is called **leaching**.

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