The main energy containing components of biogas is

Options

A. Methane
B. Hydrogen
C. Hydrogen sulphide
D. Carbon dioxide

Answer

To answer the question about the main energy-containing component of biogas, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Biogas Composition**:
- Biogas is a mixture of various gases produced through the anaerobic digestion of organic matter. The primary components of biogas include methane (CH4), carbon dioxide (CO2), hydrogen (H2), and hydrogen sulfide (H2S).

2. **Identifying the Main Component**:
- Among these gases, methane is the most abundant. It typically constitutes about 50% to 85% of the total volume of biogas.

3. **Calorific Value**:
- Methane not only has the highest concentration in biogas but also possesses the highest calorific value. This means it releases the most energy when burned compared to the other components.

4. **Conclusion**:
- Based on its abundance and energy content, we can conclude that the main energy-containing component of biogas is methane (CH4).

### Final Answer:
The main energy-containing component of biogas is **Methane (CH4)**.

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