Single correct option
Which of the following greenhouse gases is released in large quantity from paddy fields and by cattle?
- A. Nitrogen
- B. Methane
- C. Argon
- D. Ozone
Show answer and solution
Answer: (B) Methane
Anaerobic decomposition in waterlogged paddy fields and fermentation in the guts of ruminants such as cattle release methane, a potent greenhouse gas. Nitrogen and argon are not greenhouse gases. Ozone at ground level is a pollutant formed from reactions of pollutants in sunlight rather than released from these sources. Methane is more than twenty times as effective as carbon dioxide at trapping heat over a century, though its quantity is smaller.
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