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Environmental Protectio

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

agricultural herbs
agricultural pests
all of these
agricultural insects

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

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

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Environmental Protectio
Streptomyces griseochromogenes is reported to show a potent curative effect against

yellow blight of maize
eye spot of sugarcane
milo of soybean
rice blast disease

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Environmental Protectio
Which of the following is selectively effective against dicot weeds?

Cycloheximide
Bialaphos
Herbicidin A and B
Anisomycin

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

mesosaprophytic zone
oligosaprophytic zone
pleosaprophytic zone
none of these

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Environmental Protectio
Which of the following is the most effective for the rice sheath blight pathogen, Pellicularia sasakii?

Polyoxin C
Polyoxin B
Polyoxin D
Polyoxin L

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