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Microbiology of Soils

Microbiology of Soils
The nitrogenase consists of

dinitrogenase
none of these
both (a) and (b)
dinitrogenase reductase

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Microbiology of Soils
Most soil protozoa are flagellates or amoebas, having their dominant mode of nitrogen as

ingestion of mold
all of these
ingestion of bacteria
ingestion of fungi

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Microbiology of Soils
The conversion of molecular nitrogen into ammonia is known as

ammonification
denitrification
nitrogen fixation
nitrification

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Microbiology of Soils
Which are the main source of biofertilisers?

Bacillus
None of these
Cyanobacteria
Streptococcus

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Microbiology of Soils
Degree of compost maturity can be assesed by

infrared technique
both (a) and (b)
germination test
None of these

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Microbiology of Soils
The phenomenon of commensalism refers to a relationship between organisms in which

one species of a pair is more benefited
both the species of a pair benefit
None of these
one species of a pair benefits

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