71. What is value of BOD of sewage water in comparision to normal water ?
72. Which pair is correct ?
A. Rhizobium - Parasites of leguminous plant
B. Mychoriza - Absorbation of Phosphate
C. Yeast - Biogas production
D. Nostoc - Biofuel
Answer : Option B
73. According to latest news BT cotton is widely cultivated, in that Bt cotton means....
A. Bigger thread variety
B. Cotton seeds treated with Barium
C. Produce by biotechnologycal enzymes ristiction endonueleus
D. Contains Endo toxin gene of B.T.
Answer : Option D
74. Which are the main components of biogas ?
A. \(CH_{4}\)+\(CO_{2}\)+\(N_{2}\)
B. (CO_{2}\)+\(H_{2}O\)
C. \(CH_{3}\)+\(O_{2}\)
D. (CO_{2}\)+\(H_{2}\)
Answer : Option A
75. Azospirillium and Azotobector for example of.....
A. Decomposers
B. Free living N2 fixative
C. Symbiotic N2 fixative
D. Pathogenes
Answer : Option B
76. How the ethenol is produce in industrial field ?
77. How the ethenol is produce in industrial field ?
78. Which option provides fertiliser as well as energy ?
79. Which one is true information for toxin Bt ?
A. Bt protien contains active toxins in bacillus
B. Active toxin enters into the ovary of insects and makes it sterile so as to stop the reproduction.
C. Becillius contains antitoxin material
D. Toxic enters into the alimentary canal of insects which results lethal for the insect.
Answer : Option D
80. By BOD which one is to be measured ?
A. Amount of organic matters of water.
B. Industrial waste of water Resources.
C. Amount of co which connected with Hb.
D. Amount of required O2 for dark reaction of green plants.
Answer : Option A