Q. Which of the following is/are possible causes for methane emissions which amount to global warming?
1. Extensive rice cultivation
2. Raising of livestock
3. Wetlands
Select the correct answer using the codes given below:
Answer: D
Notes:
Explanation:
- Methane is emitted by natural sources such as wetlands, as well as human activities such as leakage from natural gas systems, the raising of livestock, and extensive rice agriculture.
- Natural processes in soil and chemical reactions in the atmosphere help remove methane from the atmosphere.
- Irrigated rice fields are the major source of methane from rice fields.
- Methane from rice contributes around 1.5 percent of total global greenhouse gas emissions
- Livestock generates methane in two main ways: through their digestion and through their waste.
- Methane (CH4) is a hydrocarbon that is a primary component of natural gas.
Source: ForumIAS
