The process of decomposition which is incorrect is

Options

A. Fragmentation : Break down detritus into smaller particles
B. Leaching : water soluble inorganic nutrients go down into the soi horizon
C. catabolism : Enzymes degrade detritus into simpler inorganic substances
D. Humification : Release of inorganic nutrients from humus

Answer

To solve the question regarding the incorrect process of decomposition, we will analyze each of the provided statements step by step.

### Step-by-Step Solution:

1. **Understanding Decomposition**:
- Decomposition is the process of breaking down complex organic matter (like dead plants and animals) into simpler inorganic substances such as water, carbon dioxide, and minerals.

2. **Analyzing the Statements**:
- **Statement 1: Fragmentation**: This refers to the breaking down of detritus (the dead organic matter) into smaller particles. This is the first step in decomposition and is correct.

- **Statement 2: Leaching**: This process involves the movement of water-soluble inorganic substances down into the soil, where they can precipitate as unavailable salts. This is also a correct step in the decomposition process.

- **Statement 3: Catabolism**: This is the process where bacteria and fungal enzymes break down the detritus into simpler inorganic substances. This is a key part of decomposition and is correct.

- **Statement 4: Humification**: This refers to the formation of humus, a dark-colored, amorphous substance that is highly resistant to microbial action. While humification is a part of the decomposition process, the statement implies that it is directly involved in the release of inorganic nutrients, which is actually a process called mineralization. Thus, this statement is incorrect in the context provided.

3. **Conclusion**:
- The incorrect statement regarding the process of decomposition is **Statement 4** (Humification).

### Final Answer:
The process of decomposition which is incorrect is **Statement 4: Humification**.

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