What are the components of Biogas? How is biogas produced ? Write any two advantages of this gas to the farmers.

Explanation

### Step-by-Step Solution:

**Step 1: Identify the Components of Biogas**
Biogas is primarily composed of several gases. The main components and their approximate percentages are as follows:
- Methane (CH₄): 50% to 75%
- Carbon Dioxide (CO₂): 25% to 50%
- Nitrogen (N₂): 0% to 10%
- Hydrogen (H₂): 0% to 1%
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