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- Question
The heavily polluted zone of water reservoir is known as
Options- A. pleosaprophytic zone
- B. mesosaprophytic zone
- C. oligosaprophytic zone
- D. none of these
- Correct Answer
- pleosaprophytic zone
- 1. Milbemycin is known to exhibit a broad spectrum of activity against
Options- A. agricultural pests
- B. agricultural herbs
- C. agricultural insects
- D. all of these Discuss
- 2. Which of the bacteria is considered for biological leaching?
Options- A. T. thiooxidans
- B. T. ferrooxidans
- C. Ferrobacillus terrooxidans
- D. all of these Discuss
- 3. Which of the following have been used to oxidize ammonia and to prevent algal growth?
Options- A. growth of hypomicrobium in presence of added methanol
- B. Micrococcus denitrificans cells encapsulated in liquid membranes
- C. Both (a) and (b)
- D. Nitrosomonas europaen Discuss
- 4. Which of the following can be used for the removal of color from the effluents of pulp mill?
Options- A. Coriolus versicolor entrapped in calcium alginate beads
- B. Phanerochaete chrysosporium
- C. Both (a) and (b)
- D. Nitrosomonas europaen Discuss
- 5. Which of the following is the most effective for the rice sheath blight pathogen, Pellicularia sasakii?
Options- A. Polyoxin D
- B. Polyoxin B
- C. Polyoxin L
- D. Polyoxin C Discuss
- 6. Which of the following is known to control Colorado potato beetle?
Options- A. Beaveria bassiana
- B. Metarhizium anisopliae
- C. Verticillium lecauii
- D. Nomuraea rileyi Discuss
- 7. Inundation involves use of a/an
Options- A. large number of organisms over a short time to suppress/destroy a population
- B. organism over a short time to suppress/destroy a population
- C. large number of organisms over a long time to suppress/destroy a population
- D. organism over a long time to suppress/destroy a population Discuss
- 8. Which of the following is selectively effective against dicot weeds?
Options- A. Cycloheximide
- B. Anisomycin
- C. Herbicidin A and B
- D. Bialaphos Discuss
- 9. Which of the following herbicide is known to be effective against perennial shrubs, annual weeds and weeds of rice?
Options- A. Cycloheximide
- B. Anisomycin
- C. Herbicidin
- D. Bialaphos Discuss
- 10. Exchange of segments between non homologous chromosomes is best known as
Options- A. translation
- B. translocation
- C. recombination
- D. crossing over Discuss
Environmental Protection problems
Search Results
Correct Answer: agricultural pests
Correct Answer: all of these
Correct Answer: Nitrosomonas europaen
Correct Answer: Both (a) and (b)
Correct Answer: Polyoxin D
Correct Answer: Beaveria bassiana
Correct Answer: large number of organisms over a short time to suppress/destroy a population
Correct Answer: Herbicidin A and B
Correct Answer: Cycloheximide
Correct Answer: translocation
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