Which of following contain methane?1. A. Natural gas2. B. Marsh Gas3. C. Town Gas4. D. Both A & B

To determine which options contain methane, let’s analyze each one:

1. Natural Gas: This is primarily composed of methane (CH₄), making it a significant source of methane in the energy sector.

2. Marsh Gas: Marsh gas is another term for biogas and mainly consists of methane, produced by the anaerobic decomposition of organic matter in wetlands.

3. Town Gas: Historically, town gas was produced from coal and had a variable methane content. However, it typically contained a mixture of gases including hydrogen, carbon monoxide, and methane.

4. Both A & B: Since both natural gas and marsh gas contain a high percentage of methane, this option suggests that these are the correct responses.

Conclusion

The correct answer is D. Both A & B, as both natural gas and marsh gas contain significant amounts of methane.