Which gas is produced during anaerobic fermentation of agricultural waster ?

Options

A. Biogas
B. Methane
C. LPG
D. CO

Answer

To answer the question "Which gas is produced during anaerobic fermentation of agricultural waste?", we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Anaerobic Fermentation**:
- Anaerobic fermentation is a process that occurs in the absence of oxygen. It involves the breakdown of organic materials by microorganisms.

2. **Identifying Agricultural Waste**:
- Agricultural waste includes plant residues, animal waste, and domestic sewage. These materials can be fermented to produce energy.

3. **Conditions for Fermentation**:
- The fermentation process typically occurs in a marshy environment, which provides the necessary conditions for anaerobic activity.

4. **Role of Microorganisms**:
- Microbes play a crucial role in the fermentation process. They break down the organic matter present in agricultural waste.

5. **Gas Production**:
- During anaerobic fermentation, various gases are produced. The primary gas produced is biogas.

6. **Composition of Biogas**:
- Biogas mainly consists of methane (CH4) and carbon dioxide (CO2). Methane is the primary component, while carbon dioxide is also significant. Other gases may be present in trace amounts, such as hydrogen and nitrogen.

7. **Conclusion**:
- Therefore, the gas produced during the anaerobic fermentation of agricultural waste is primarily **methane (CH4)**, which is a major component of biogas.

### Final Answer:
The gas produced during anaerobic fermentation of agricultural waste is **methane (CH4)**.

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