In the chemosynthesis of $NO_2$ bacteria (nitrifying bacteria),the carbohydrates are formed by:

  • A
    $NO_2$ and $H_2O$
  • B
    $NH_3$ and $CO_2$
  • C
    $CO_2$,$H_2O$ and $SO_2$
  • D
    Hydrocarbons

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