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Microbiology of Soils

Microbiology of Soils
Assimilative denitrification is done by

all of these
fungi
plants
prokaryotes

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Microbiology of Soils
Some microorganisms have the ability to increase the nitrogen content of soils, are called as

denitrification
nitrogen fixation
all of these
nitrification

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Microbiology of Soils
Which of the following is capable of oxidizing sulfur to sulfates?

Rhodomicrobium
Thiobacillus thiooxidans
Desulfotomaculum
Rhodospirillum

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Microbiology of Soils
The microbial ecosystem of soil includes

biotic and abiotic components of soil
biotic components of soil
None of these
abiotic components of soil

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Microbiology of Soils
The population of algae in soil is __________ that of either bacteria or fungi.

none of these
generally greater than
equal to
generally smaller than

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Microbiology of Soils
The nitrogenase consists of

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

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