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