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Microbiology of Soils

Microbiology of Soils
Degree of compost maturity can be assesed by

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

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

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

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Microbiology of Soils
Bacteria, as a group, are responsible for

nitrogen oxidation
all of these
sulfur oxidation
nitrogen fixation

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Microbiology of Soils
Nitrogen fixation refers to the direct conversion of atmospheric nitrogen gas into

nitrate
ammonia
ATP
glucose

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Microbiology of Soils
Denitrification may be distinguished as

blue baby syndrome
assimilative
dissimilative
both (a) and (b)

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Microbiology of Soils
The nonsymbiotic bacteria which fix nitrogen live in the soil independently are

All of these
Azotobacter
considerably less important in comparison to the symbiotic bacteria
Clostridium

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