Which of the following microbial processes results in the production of methane in biogas plants?
Methanogenesis is the process by which methanogenic bacteria produce methane in biogas plants. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.
Ref: NCERT Biology Textbook for Class XI and XII (Botany section), Chapter: Morphology and Anatomy of Flowering Plants, Topic: Plant structure and tissue systems.