What is the chemical nature of biogas. Name an organism which is involved in biogas production?

Explanation

### Step-by-Step Solution:

1. **Understanding Biogas Composition**:
- Biogas is primarily composed of several gases, with the main component being methane (CH₄).
- The typical composition of biogas includes:
- Methane: 50% to 70%
- Carbon Dioxide (CO₂): 30% to 40%
- Trace amounts of other gases such as nitrogen (N₂), hydrogen sulfide (H₂S), and hydrogen (H₂).
...