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Question
Which of the following/(s) can be used for the reduction of nitrate in waste water?
Options:
A .  Growth of Hypomicrobium in presence of added methanol
B .  Micrococcus denitrificans cells encapsulated in liquid membranes
C .  Both (a) and (b)
D .  Nitrosomonas europaen
Answer: Option C
Answer: (c).Both (a) and (b)
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