MCQ Pollution of Air and Water Chapter 18 Class 8 Science Advertisement MCQ’s For All Chapters – Science Class 8th 1. Which gas is the major pollutant of air?Carbon monoxideNitrogenOxygenPropaneYour comments:Question 1 of 202. The increase in concentration of which gas is not responsible for Global Warming?Sulphur dioxideNitrogenCarbon dioxideMethaneYour comments:Question 2 of 203. In which year Ganga Action Plan was launched?1980198419821985Your comments:Question 3 of 204. What radiations are absorbed by CO2?Ultrared radiationsInfrared radiationsUltraviolet radiationsNone of theseYour comments:Question 4 of 205. Which element is present in the exhaust of automobiles?LeadCalciumChromiumMagnesiumYour comments:Question 5 of 206. The phenomenon of marble cancer is due tosoil particlesfogCFCsacid rainYour comments:Question 6 of 207. The solid or liquid particles dispersed in the air are calledoxidesacidshydrocarbonsaerosolsYour comments:Question 7 of 208. The type of pollution which is likely to affect Taj Mahal in Agra to a greater extent isair pollutionsoil pollutionwater pollutionnoise pollutionYour comments:Question 8 of 209. The major causes of air pollution includeburning of coal and petroleumafforestationdeforestationrecycling of paperYour comments:Question 9 of 2010. Bhopal tragedy was caused due toair pollutionemission of poisonous gaswater pollutionleakage of poisonous gasYour comments:Question 10 of 2011. Which of the following contents is most harmful to aquatic animals?Heavy metal ionsSodium ionsPotassium ionsChloride ionsYour comments:Question 11 of 2012. Water containing high salt concentration can be purified byboilingUV irradiationfiltrationreverse osmosisYour comments:Question 12 of 2013. Which of the following is a non-biodegradable pollutant?Sulphur dioxideDDTNitrogen oxideHydrogen oxideYour comments:Question 13 of 2014. Which of the following is major source of water pollution?Industrial wastesUntreated sewageUse of fertilisersToxic metalsYour comments:Question 14 of 2015. Which of the following techniques of irrigation should be used to save water?Water wheelCanal irrigationDrip irrigationLift irrigationYour comments:Question 15 of 2016. Carbon monoxide in vehicle exhaust causesIncreased oxygen carrying capacity of RBCsReduced Nitrogen carrying capacity of RBCsReduced oxygen carrying capacity of RBCsReduced carbon carrying capacity of RBCsYour comments:Question 16 of 2017. Smog =Smoke in dog’s stomachSmoke + fogSmoke dogfrog in fogYour comments:Question 17 of 2018. The gas used in refrigerating appliance causing serious damage to ozone isMFCsCFCsLPCsDPCsYour comments:Question 18 of 2019. Acid rain mainly containsSodium chlorideSulphur dioxide and Nitrogen dioxideHydrochloric acidCarbon tetra chlorideYour comments:Question 19 of 2020. Marble cancer is caused bybacteriavirusAcid rainAlkali rainYour comments:Question 20 of 20 Loading...
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