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Environmental Protectio

Environmental Protectio
The heavily polluted zone of water reservoir is known as

oligosaprophytic zone
mesosaprophytic zone
none of these
pleosaprophytic zone

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Environmental Protectio
Which of the following microorganisms leach metals out of rock ores and can accumulate silver?

Zoogloea ramigera
Thiobacillus
Pseudomonas aeruginosa
Pseudomonas putida

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Environmental Protectio
Which of the following/(s) can be used for the reduction of nitrate in waste water?

Micrococcus denitrificans cells encapsulated in liquid membranes
Nitrosomonas europaen
Growth of Hypomicrobium in presence of added methanol
Both (a) and (b)

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Environmental Protectio
Which of the following herbicide is known to be effective against perennial shrubs, annual weeds and weeds of rice?

Cycloheximide
Anisomycin
Herbicidin
Bialaphos

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Environmental Protectio
Which of the following accumulates from factory waste?

Zoogloea ramigera
Thiobacillus
Pseudomonas aeruginosa
Pseudomonas putida

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Environmental Protectio
Which of the following is known to control Colorado potato beetle?

Beaveria bassiana
Metarhizium anisopliae
Verticillium lecauii
Nomuraea rileyi

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