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Microbes in Human Welfare — BIOLOGY STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceBIOLOGYMicrobes in Human Welfare1 Mark
MCQ
In a biogas plants, one of them will be essential:
  • A
    Azolla
  • B
    Rhizobium
  • C
    Nitrifying bacteria
  • D
    Methanobacterium
✓

Answer

  1. Methanobacterium

Explanation:

Biogas is the alternate source of energy produced by the decomposition of organic wastes such as animal excreta and kitchen wastes by the action of methanobacterium. It contains nearly 70% methane. Methane is an inflammable fuel. Methanobacterium is the bacterium that can synthesize methane. Hence, the methanogenic bacteria are of great use in biogas plants.

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