A) Decomposition of dead organic matter
B) Decomposition in paddy fields
D) Water pollution
Correct Answer: B
Solution :[b] Methane is a chemical compound with the chemical formula CH (one atom of carbon and four atoms of hydrogen). It is the simplest alkane and the main component of natural gas. The warm, waterlogged soil of rice paddies provide ideal conditions for methanogenesis. Clearly, humans are directly responsible for the world's paddy fields and so also for their methane emissions. The expansion of the human population has necessitated increased rice production and the resulting methane emission from this source.
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