Which of the gases is found in bio-gas?

Options

A. Ethane
B. Propane
C. Butane
D. Methane

Explanation

**Step-by-Step Solution:**

1. **Understanding Biogas:**
- Biogas is a type of renewable energy source that is produced through the anaerobic digestion of organic matter. This organic matter can include cattle dung, agricultural waste, and other biodegradable materials.

2. **Components of Biogas:**
- The primary gases found in biogas include:
- Methane (CH₄)
- Carbon Dioxide (CO₂)
- Hydrogen Sulfide (H₂S)

3. **Composition of Biogas:**
- The approximate composition of biogas is:
- Methane: 60%
- Carbon Dioxide: 40%
- Hydrogen Sulfide: 0.1%

4. **Identifying the Correct Gas:**
- From the options provided, we need to identify which gas is a significant component of biogas. The main gas that is produced in biogas is methane.

5. **Conclusion:**
- Therefore, the gas found in biogas is primarily methane (CH₄).

**Final Answer:**
- The gas found in biogas is Methane (CH₄).

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