1. Ozone layer is present in A. troposphere B. lonosphere C. stratosphere D. exosphere 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
2. Primary pollutants can be A. SO2, CO B. PAN, O3 C. Both of these D. None of these 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
3. The term 'brown air' is used for A. Acid fumes B. Photochemical smog C. Sulphurous smog D. Industrial smog 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
4. Acid rain can be reduced by use of A. LPG B. CNG C. Both of these D. None of these 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
5. Acid rain is caused due to pollution of atmosphere by A. oxides of carbon and nitrogen B. oxides of nitrogen and sulphur C. oxides of nitrogen and phosphorous D. none 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
6. Which one of the following Green house gases is in largest concentration in the atmosphere? A. Chlorofluorocarbon B. Nitrous oxide C. Carbon dioxide D. Methane 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
7. Radioactive elements emit A. Radio waves B. Infrared waves C. Ultraviolet waves D. α, β and γ radiations 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
8. Nobel prize in Green Chemistry is not associated with A. R Williamson B. Yves Chauvin C. Robert H, Grubbs D. Richard R, Schrock 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
9. Air pollution is caused by smoke. Which of the following types of coal produces no smoke on burning? A. Peat B. Lignite C. Bituminous D. Anthracite 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
10. Physico-chemical characteristics of water in water sources undergo changes due to A. Aquatic macrophytes B. Aquatic fungi C. Effluents D. Evapotranspiration 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