Which one of the following pairs is wrongly matched?

  • A
    Methanogens - Gobar gas
  • B
    Yeast - Ethanol
  • C
    Streptomycetes - Antibiotic
  • D
    Coliforms - Vinegar

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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

Which of the following is correctly matched?

Which of the following is not used for the disinfection of drinking water?

What is shown in the given figure?

The fruit juices turn bitter in taste if they are kept in open place for some time,because of

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