Methanogens are found in:

  • A
    Biogas plant
  • B
    Rumen of cattle
  • C
    Both $A$ and $B$ are correct
  • D
    Both $A$ and $B$ are incorrect

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What is the importance of bacteria?

$S -$ Statement: Cellulase is used in laundry to remove oily stains.
$R -$ Reason: Cyclosporin-$A$ is used to prevent blood clotting in blood vessels.

Match the following columns:
Column-$I$ Column-$II$
$1$. Trichoderma $a$. Quantum-$4000$
$2$. Pseudomonas $b$. Free-living biocontrol fungus
$3$. Baculovirus $c$. Resistant to crop-sucking pests
$4$. Bt Cotton $d$. Pathogenic to insects and some arthropods

Micro-organisms are used in:

Which of the following pairs is incorrect?

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