51. Which statement is correct for STPs ?
A. Value of BOD is decrease in effluent.
B. Flocks is sedimanted in settling tank.
C. At end of process biogas is formed.
D. All the given
Answer : Option D
52. Which odd for mixed gases which produces in anerobic sludge diagesters ?
53. Which bacteria is remain in alimentary canal of herbivorus ?
54. Which biological process will take place in STPs ?
55. What is indirectly called the measurment of organic matter of water ?
56. From which compound methane gas is produced by bacteria ?
57. Which gas will produced in anearobic sludge digesteres ?
58. Which micro organism is irrelevent as a biocontrol agent ?
59. Which scientist has invented Antibodies ?
60. Which bacterial group is useful in biogas production ?