41. Thermal power generation in India is carried out by burning A. Natural gas B. Coal C. Oil 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
42. Removal of solids materials is generally considered as A. Primary treatment B. Secondary treatment C. Tertiary treatment D. Any of the above 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
43. When industry with red category is to be established, it is necessary to have hearing or inquiry under the procedure called as A. Environmental health hazard (EHH) B. Environmental Litigation (EL) C. Environmental management system (EMS) D. Environmental Impact Assessment (EIA) 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
44. A measure of the amount of oxygen consumed in the biological process that break down organic matter is known as A. Bioconcentration B. Biochemical oxygen demand C. Bioaccumulation D. Biomagnifications 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
45. A highly vesicular material derived from acidic laves and produced in very large quantities known as A. Scoriae B. Volcanic bomb C. Pumice D. Tuff 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
46. Aquatic microorganisms, in general can be grown at pH A. 6.5 to 8.5 B. 3.5 to 9.0 C. 2.5 to 5.7 D. 5.0 to 7.5 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
47. Sedimentation is enhanced by the addition of A. Alum aluminium sulphate B. Sodium chloride C. Ethylene D. Benzene 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
48. Biogas production is the outcome of A. Methanogenesis B. Pyrolysis C. Methanogenesis and gasification D. Gasification 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
49. The spatial scale of meso-scale meteorological phenomenon is approximately A. 2 - 3 krn to 5 - 6 km B. Few km to 100 km C. Few 100 m to few km D. 10 mm to 1 km 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
50. Polychlorinated biphenyls (PCBs) which cause environmental exposure risk have these important properties A. Very high volatility in air B. Chemically unstable and highly reactive C. Heat stable and have no flash or fire point D. Highly soluble in water and poorly soluble in oils and organic solvents 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
