One of the useful activities of several bacteria is

  • A
    Nitrogen fixation
  • B
    Nitrification
  • C
    Operation of biogeochemical cycles
  • D
    All of the above

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Similar Questions

Identify the correct statement.

Which of the following pairs is mismatched?

Match the following columns:
Column-$I$Column-$II$
$1$. $Propionibacterium$ $shermanii$$A$. Production of ethanol from fruit juice
$2$. $Saccharomyces$ $cerevisiae$$B$. Citric Acid
$3$. $Aspergillus$ $niger$$C$. 'Swiss Cheese'
$4$. $Trichoderma$ $polysporum$$D$. Immunosuppressive agent

Which of the following pairs is not correctly matched?

The deadly disease for which antibiotics were discovered is/are ......... .

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