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.Management Sciences
A. A primary pollutant
B. A secondary pollutant
C. Impervious to ultra-violet rays
D. Both B. and C.
Related Mcqs:
- In water treatment plant, zeolite process is used to remove the _____________ of water?
- A. Acidity B. Alkalinity C. Hardness D. Iron & zinc...
- Fine grit present in sewage is removed in the _____________ during sewage treatment?
- A. Grit chamber B. Detritus tank C. Trickling filter D. Skimming tank...
- ‘Pneumoconiosis’ is a disease caused by the inhalation of ______________ dust?
- A. Coal B. Uranium ore C. Iron ore D. Lime...
- The progressive warming up of the earth’s surface is mainly due to the___________________?
- A. Automobile exhaust B. Blanketing effect of CO2 in the atmosphere C. De-forestation D. Thickening of ozone layer...
- Turbidity of water is an indication of the presence of__________________?
- A. Suspended inorganic matter B. Dissolved solids C. Floating solids D. Dissolved gases...
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