which of the following factor inhibit decomposition?

Options

A. low temperature and anaerobiosis
B. warm and moist environment
C. aeration
D. both (2) & (3)

Answer

To solve the question "Which of the following factors inhibit decomposition?", we can follow these steps:

### Step 1: Understand Decomposition
Decomposition is the process by which dead organic matter is broken down into simpler organic or inorganic substances. This process is essential for nutrient cycling in ecosystems.

### Step 2: Identify Factors Affecting Decomposition
There are several factors that can influence the rate of decomposition, including temperature, moisture, oxygen availability, and aeration.

### Step 3: Analyze Each Option
1. **Low Temperature and Anaerobiosis**:
- Low temperatures slow down the metabolic processes of decomposers (like bacteria and fungi), which inhibits decomposition.
- Anaerobic conditions (lack of oxygen) also hinder the activity of aerobic decomposers, further inhibiting the process.
- **Conclusion**: This option inhibits decomposition.

2. **Warm and Moist Environment**:
- Warm temperatures and moisture generally promote decomposition as they provide optimal conditions for microbial activity.
- **Conclusion**: This option enhances decomposition, so it does not inhibit it.

3. **Aeration**:
- Proper aeration allows for sufficient oxygen supply, which is crucial for aerobic decomposers to thrive.
- **Conclusion**: This option supports decomposition, so it does not inhibit it.

4. **Second and Third Options**:
- Since the second option (warm and moist environment) and the third option (aeration) both enhance decomposition, they cannot be correct answers for inhibiting factors.

### Step 4: Final Conclusion
Based on the analysis, the only factor that inhibits decomposition is **low temperature and anaerobiosis**.

### Answer:
The correct answer is **Low Temperature and Anaerobiosis**.

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