41. Which product is synthesized by micro organism at commerical level for mankind ?
42. Effluent means....
A. Water remaining under the primary sludge.
B. Solid compunds of the sedimentation
C. Water remaining over the primary sludge
D. Flocks forms from the primary sludge.
Answer : Option C
43. Which group of micro organism is useful as a bio control agent ?
A. Cynobacteria, Bacula virus, Trichoderma
B. Trichoderma, Psuedomonas, Bacillus Thuringiensis
C. Rhizhobiam, Cynobacteria, Psuedomonas
D. All the given
Answer : Option B
44. Which gases are there in biogas ?
A. \(CH_{4}\),\(CO_{2}\),\(H_{2}S\)
B. \(CH_{3}\),\(CO_{2}\),\(H_{2}S\)
C. \(CH_{2}\),\(CO_{2}\),\(H_{2}S\)
D. \(CH_{3}\),\(CO_{2}\),\(H_{2}S\)
Answer : Option A
45. Which bacteria are useful in anaerobic sludge digestures tank ?
46. Which one correct for the free living and symbiotic funges?
A. Glomus and Rhyzopus
B. Glomus and Azospirillum
C. Trichoderma and Rhizopus
D. Trichoderma and Azospirillum
Answer : Option B
47. Formation of flocks means....
A. Assoicated of virus with the bacteria remains in water
B. Bactaria which associated with the mychoriza of the fungus of water
C. Bactaria which associated with the mychorriza of the fungus of soil
D. Bactaria which associated with the solid waste of the water
Answer : Option B
48. In which tank flocks is sedimenated and forms respectively ?
A. Settling tank, Aeration tank
B. Aeration tank, Effluent tank
C. Aeration tank, Settling tank
D. Effluent tank, Anearoble tank
Answer : Option A
49. Who has established Ganga nad Yamuna action plan ?
A. IARI
B. KVIC
C. Ministry of forest and Environment
D. Integrated pest control management
Answer : Option C
50. What is sedimantated flocks ?