6. | The heavily polluted zone of water reservoir is known as |
a. | pleosaprophytic zone |
b. | mesosaprophytic zone |
c. | oligosaprophytic zone |
d. | none of these |
View Answer Report Discuss 50-50! |
Answer: (a).pleosaprophytic zone
|
7. | Streptomyces griseochromogenes is reported to show a potent curative effect against |
a. | rice blast disease |
b. | yellow blight of maize |
c. | milo of soybean |
d. | eye spot of sugarcane |
View Answer Report Discuss 50-50! |
Answer: (a).rice blast disease
|
8. | Which of the following is selectively effective against dicot weeds? |
a. | Cycloheximide |
b. | Anisomycin |
c. | Herbicidin A and B |
d. | Bialaphos |
View Answer Report Discuss 50-50! |
Answer: (c).Herbicidin A and B
|
9. | Which of the following/(s) can be used for the reduction of nitrate in waste water? |
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 |
View Answer Report Discuss 50-50! |
Answer: (c).Both (a) and (b)
|
10. | Which of the following herbicide is known to be effective against perennial shrubs, annual weeds and weeds of rice? |
a. | Cycloheximide |
b. | Anisomycin |
c. | Herbicidin |
d. | Bialaphos |
View Answer Report Discuss 50-50! |
Answer: (a).Cycloheximide
|