Which of the following is/are the source/sources of methane, a greenhouse gas?
Most of Eah's methane is biogenic and is produced by methanogenesis, form of anaerobic respiration only known to be conducted by some members of the domain Archaea. Methanogens occupy landfills and other soils,ruminants (for example cows or cattle), the guts of termites, and the anoxic sediments below the seafloor and the bottom of lakes. Rice fields also generate large amounts of methane during plant growth. Ref: Internet
Cattle
Rice fields & Wetlands
Cattle and rice fields
Cattle, rice fields and Wetlands
Environment and health