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Microbiology of Soils

Microbiology of Soils
Degree of compost maturity can be assesed by

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

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Microbiology of Soils
The energy value of biogas is typically

more than 5000 BTU/ft3
1500 BTU/ft3
400-700 BTU/ft3
1,000 BTU/ft3

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

sulfur oxidation
nitrogen fixation
all of these
nitrogen oxidation

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Microbiology of Soils
Which are the main source of biofertilisers?

Streptococcus
None of these
Cyanobacteria
Bacillus

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

ammonia
glucose
ATP
nitrate

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Microbiology of Soils
Which of the following statement is not true about composition of biogas?

Both (a) and (b)
It also contains with traces of O2 and Cl2
It is composed almost exclusively of methane and carbon dioxide
It also contains with traces of H2S, N2, H2and CO

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