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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.

lesser
approximately equal
half
greater

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

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

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Microbes in Aquatic Environment
Chemical precipitation of phosphorus is

both (a) and (b)
secondary treatment
tertiary treatment
primary treatment

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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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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

approximately equal to
half
greater
lesser

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Microbes in Aquatic Environment
Activated sludge undergoes

Tertiary treatment
Primary treatment
Secondary treatment
any of these

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