61. The noise index LgO refers to A. Background noise level B. Peak noise level C. Average noise level D. 90% Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
62. The solubility of Fe in water A. Increases with increasing in pH B. Decreases with increasing in pH C. Independent of pH D. Dependent only on redox potential and not pH Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
63. Biodiesel is obtained by A. Allium cepa B. Mangifera indica C. Jatropha spp. D. Argemonem axicana Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
64. Water contaminated with either domestic or industrial wastes is called A. Non-potable water B. Distilled water C. Sewage water D. Potable water Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
65. Bulking of sewage sludge is frequently associated with A. High C : N ration B. High C : P ratio C. High dissolved oxygen D. All of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
66. One of the following is not an In situ conservation for biological resources A. Biosphere reserve B. National parks C. Protected areas D. Breeding under confirmed areas Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
67. OCT plasmid is responsible for degradation of A. Phenols B. n-alkanes C. Herbicides D. Dioxins Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
68. The planet nearest to the Sun is A. Earth B. Mercury C. Moon D. Jupiter Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
69. PM2.5 refers to A. Mass of particles of size less than 2.5 μrn B. Mass of particles of size greater than 2.5 μrn C. Number of particles of size less than 2.5 μrn D. Number of particles of size greater than 2.5 μrn Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
70. A majority of the antibiotics are derived from actinomycetes which come from members of the genus A. Nocardia B. Streptomyces C. Micromonospora D. Actinomyces Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
