. Bacteria, which break down the dead organisms of the soil into nitrogen compounds are termed

a. nitrogen fixing bacteria

b. denitrifing bacteria

c. nitrifying and ammonifying bacteria

d. parasitic bacteria

Best Answer

c.

These bacteria change the ammonia and organic nitrogen in wastewater into oxidized nitrogen (usually nitrate).

Bacteria of the genus Nitrosomonas oxidize NH3 to nitrites (NO2−).

Bacteria of the genus Nitrobacter oxidize the nitrites to nitrates (NO3−).

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