Methane is emitted from which of the following?

Paddy fields only
Termitaries only
Both (a) and (b)
None of the above

उत्तर दाखवा आणि स्पष्टीकरण

उत्तर: (C) Both (a) and (b)

स्पष्टीकरण

Methane is released both by anaerobic decomposition in flooded paddy fields and by microbes in termite guts. Both are major natural/agricultural sources.