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Microbes in Aquatic Environment

Microbes in Aquatic Environment
The rate of flux of oxygen in air is __________ to/than the rate of flux of oxygen in water.

greater
approximately equal
half
lesser

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Microbes in Aquatic Environment
The amount of oxygen dissolved in hypolimnion water in the winter is __________ to/than the amount of oxygen dissolved in hypolimnion water in the summer

greater
approximately equal to
lesser
half

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Microbes in Aquatic Environment
Removal of solids is generally considered as a

Tertiary treatment
None of these
Secondary treatment
Primary treatment

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Microbes in Aquatic Environment
The sulfur pearl of Namibia, Thiomargarita namibiensis

is the worlds smallest bacterium
stores high concentrations of nitrate in a huge internal vacuole which takes up 98% of the organisms volume
Both (a) and (b)
is the worlds largest bacterium

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Microbes in Aquatic Environment
Which of the following species in water reveal the presence of fecal pollution of human or animal origin?

E.coli
Fecal Streptococci
All of these
Clostridium perfringens

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Microbes in Aquatic Environment
Loss of carbon through the microbial loop in oligotrophic environments is __________ to/than the loss of carbon through the microbial loop in copiotrophic environments.

lesser
approximately equal
greater
half

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