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Que. Which of the following have been used to oxidize ammonia and to prevent algal growth?
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
Correct Answer:Nitrosomonas europaen
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