Correct Answer: Methane and Carbon Dioxide
Biogas is a renewable fuel produced through the anaerobic decomposition of organic materials such as animal manure, agricultural waste, food waste, and sewage. It mainly consists of methane (CH₄) and carbon dioxide (CO₂), with small amounts of hydrogen sulfide, water vapor, and other gases. Methane is the combustible component that makes biogas an effective source of energy for cooking, heating, electricity generation, and transportation after purification. Producing biogas helps reduce waste, lowers greenhouse gas emissions, and provides an environmentally friendly alternative to fossil fuels. Biogas plants are widely used in rural areas to convert organic waste into useful energy and nutrient-rich organic fertilizer.
- Main Components: Methane and carbon dioxide.
- Produced By: Anaerobic decomposition.
- Uses: Cooking, electricity, and heating.
- Benefit: Renewable and eco-friendly fuel.
- Correct Answer: Methane and Carbon Dioxide.