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Environmental Protectio

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

mesosaprophytic zone
none of these
pleosaprophytic zone
oligosaprophytic zone

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Environmental Protectio
Which of the following have been used to oxidize ammonia and to prevent algal growth?

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

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

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

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Environmental Protectio
Milbemycin is known to exhibit a broad spectrum of activity against

agricultural herbs
all of these
agricultural insects
agricultural pests

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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 is the most effective for the rice sheath blight pathogen, Pellicularia sasakii?

Polyoxin L
Polyoxin D
Polyoxin C
Polyoxin B

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