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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.

approximately equal
lesser
half
greater

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Microbes in Aquatic Environment
Trickling filter comes under

secondary treatment
primary treatment
tertiary treatment
none of these

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Microbes in Aquatic Environment
The Redfield ratio is an index of concentration of

carbon, nitrogen and phosphorous
carbon, hydrogen and oxygen
nitrogen, potassium and iron
carbon, phosphorous and sulfur

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Microbes in Aquatic Environment
All of the following species are considered coliforms except

Escherichia coli
Enterobacter aerogenes
Klebsiella pneumoniae
Salmonella typhi

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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

half
approximately equal to
lesser
greater

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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.

approximately equal
half
greater
lesser

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