MCQ
In a biogas plants, one of them will be essential:
- AAzolla
- BRhizobium
- CNitrifying bacteria
- DMethanobacterium
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.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$I.$ Species diversity increases as we move away from the equator towards the poles.
$II.$ Stellar's sea cow and passenger pigeon got extinct due to overexploitation by man.
$III.$ Lantana and Eichhornia are invasive weed in India.
$IV$. The historic convention on biological diversity was held in $1992 .$
Choose the option containing correct statements.