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Methane (CH4) is one of the six greenhouse gases under the Kyoto protocol. Which of the following is/are sources of methane?
  1. combustion of fossil fuels
  2. wetlands
  3. automobiles
Select the correct answer using the codes given below.
  • a)
        1 and 2 only
  • b)
        1 and 3 only
  • c)
        2 and 3 only
  • d)
        1, 2 and 3
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Methane (CH4) is one of the six greenhouse gases under the Kyoto proto...
Answer d
Explanation: All three are sources of methane. Natural gas and petroleum systems are one of the largest sources of CH4 emissions. Methane is the primary component of natural gas. Some CH4 is emitted to the atmosphere during the production, processing, storage, transmission, and distribution of natural gas. Methane emissions from passenger cars (automobiles) have however dropped, as the use of catalytic converters increased. Methane is generated in landfills as waste decomposes and in the treatment of wastewater. As one of the most significant natural sources of atmospheric methane, wetlands remain a major area of concern with respect to climate change.
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Most Upvoted Answer
Methane (CH4) is one of the six greenhouse gases under the Kyoto proto...

Sources of Methane:

Combustion of Fossil Fuels:
- Combustion of fossil fuels is a significant source of methane emissions. When fossil fuels such as coal, oil, and natural gas are burned, methane is released into the atmosphere.

Wetlands:
- Wetlands are natural sources of methane due to the anaerobic decomposition of organic matter in waterlogged soils. Methane is produced by microorganisms in these environments and released into the atmosphere.

Automobiles:
- While automobiles do not directly emit methane, they can indirectly contribute to methane emissions through the combustion of fossil fuels in their engines. Methane is one of the byproducts of this combustion process.

Therefore, all three sources mentioned in the question - combustion of fossil fuels, wetlands, and automobiles - contribute to methane emissions and are considered sources of this greenhouse gas. The correct answer is option 'D' - 1, 2, and 3.
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Methane (CH4) is one of the six greenhouse gases under the Kyoto protocol. Which of the following is/are sources of methane? combustion of fossil fuels wetlands automobilesSelect the correct answer using the codes given below.a) 1 and 2 onlyb) 1 and 3 onlyc) 2 and 3 onlyd) 1, 2 and 3Correct answer is option 'D'. Can you explain this answer?
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