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Methane is a strong greenhouse gas with a global warming potential. Which of the following are the sources of methane emission?
1. Paddy rice fields
2. Livestock production systems
3. Soil with high concentration of Methanotrophic bacteria
1. Paddy rice fields
2. Livestock production systems
3. Soil with high concentration of Methanotrophic bacteria
Select the correct answer using the code given below.
- a)1 and 2 only
- b)2 and 3 only
- c)1 and 3 only
- d)1, 2 and 3
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
Methane is a strong greenhouse gas with a global warming potential. Wh...
Methane (CH4) is the second most important greenhouse gas. Methane is more potent than CO2 because the radiative forcing produced per molecule is greater. However, CH4 exists in far lower concentrations than CO2 in the atmosphere.
Natural sources of methane include
- Tropical and northern wetlands,
- Methane oxidizing bacteria that feed on organic material consumed by termites, volcanoes,
- Seepage vents of the seafloor in regions rich with organic sediment
- Methane hydrates trapped along the continental shelves of the oceans.
- Paddy rice fields
- Emission from livestock production systems (including intrinsic fermentation and animal waste)
- Biomass burning (including forest fires, charcoal combustion, and firewood burning)
- The primary natural sink for methane is the atmosphere itself, as methane reacts readily with the hydroxyl radical (OH−) within the troposphere to form CO2 and water vapour (H2O). When CH4 reaches the stratosphere, it is destroyed. Another natural sink is soil, where methane is oxidized by methanotrophic bacteria. Hence soil with high concentration of Methanotrophic bacteria act as a sink of methane. Hence option a is the correct answer.
Most Upvoted Answer
Methane is a strong greenhouse gas with a global warming potential. Wh...
Sources of Methane Emission:
Paddy Rice Fields:
- Paddy rice fields are a significant source of methane emissions due to anaerobic conditions created by flooded rice paddies.
- Methane is produced during the decomposition of organic matter in the flooded soil.
Livestock Production Systems:
- Livestock, especially ruminant animals like cows, produce methane as a byproduct of digestion.
- Microorganisms in the digestive system of these animals produce methane through enteric fermentation.
Incorrect option:
- Soil with high concentration of Methanotrophic bacteria is not a source of methane emission but rather a sink for methane as these bacteria consume methane.
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Methane is a strong greenhouse gas with a global warming potential. Which of the following are the sources of methane emission?1. Paddy rice fields2. Livestock production systems3. Soil with high concentration of Methanotrophic bacteriaSelect the correct answer using the code given below.a)1 and 2 onlyb)2 and 3 onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'A'. Can you explain this answer?
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Methane is a strong greenhouse gas with a global warming potential. Which of the following are the sources of methane emission?1. Paddy rice fields2. Livestock production systems3. Soil with high concentration of Methanotrophic bacteriaSelect the correct answer using the code given below.a)1 and 2 onlyb)2 and 3 onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'A'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Methane is a strong greenhouse gas with a global warming potential. Which of the following are the sources of methane emission?1. Paddy rice fields2. Livestock production systems3. Soil with high concentration of Methanotrophic bacteriaSelect the correct answer using the code given below.a)1 and 2 onlyb)2 and 3 onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Methane is a strong greenhouse gas with a global warming potential. Which of the following are the sources of methane emission?1. Paddy rice fields2. Livestock production systems3. Soil with high concentration of Methanotrophic bacteriaSelect the correct answer using the code given below.a)1 and 2 onlyb)2 and 3 onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'A'. Can you explain this answer?.
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