What are the main constituents of biogas and kitchen gas (LPG)?

Explanation

To answer the question about the main constituents of biogas and kitchen gas (LPG), we can break it down into a step-by-step solution.

### Step-by-Step Solution:

1. **Understanding Biogas**:
- Biogas is a type of renewable energy produced from the decomposition of organic matter by microorganisms in anaerobic conditions (absence of oxygen).
- The main constituent of biogas is **methane (CH₄)**, which typically makes up about 50-70% of biogas. Other components include carbon dioxide (CO₂), hydrogen sulfide (H₂S), and traces of other gases.

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