MCQ Chapter 5 Geography Class 11 Maharashtra Board Global Climate Change 1. In which year is the difference between the global average temperature of the twentieth century and global monthly temperatures the least?1985199019952000Question 1 of 202. What is the difference between the mean temperatures of the twentieth century and the temperature in 2015?0.8°C1.21°C0.4°C0.2°CQuestion 2 of 203. Why do temperatures differ in different months?Due to changes in greenhouse gas emissionsDue to seasonal variations and time of yearDue to volcanic eruptionsDue to deforestationQuestion 3 of 204. What is the approximate rise in the average surface air temperature of the Earth over the last century?0.2°C0.4°C0.8°C1.21°CQuestion 4 of 205. How do scientists calculate the average Earth temperature?By measuring only land temperaturesBy combining air measurements above land and ocean surfaceBy using only satellite dataBy measuring temperatures in urban areasQuestion 5 of 206. What is a ‘positive’ anomaly in temperature measurements?Temperature cooler than the long-term averageTemperature warmer than the long-term averageNo change in temperatureTemperature equal to the long-term averageQuestion 6 of 207. Which gas has the highest contribution to global greenhouse gas emissions according to the graph mentioned?Carbon Dioxide (CO2)MethaneNitrous Oxide (NO2)Water VapourQuestion 7 of 208. Which greenhouse gases come from both natural and man-made sources?Only Carbon DioxideOnly MethaneCarbon Dioxide and MethaneNitrous Oxide and Miscellaneous GasesQuestion 8 of 209. Which activity is responsible for the emission of carbon dioxide?Volcanic eruptionsFossil fuel combustionOcean acidificationCoral bleachingQuestion 9 of 2010. Which greenhouse gas emission can be controlled by humans?Water VapourCarbon DioxideMiscellaneous GasesAll of the aboveQuestion 10 of 2011. What is the average temperature of the Earth as mentioned?10°C14°C18°C20°CQuestion 11 of 2012. What phenomenon is caused by the increase in heat holding capacity of the atmosphere?Global CoolingGlobal WarmingOzone DepletionAcid RainQuestion 12 of 2013. What is one effect of global warming mentioned in the document?Decrease in sea levelsIncrease in heat wavesReduction in mosquito populationsGrowth of coral reefsQuestion 13 of 2014. What is the heat island effect associated with global warming?Cooling of urban areasHeating of rural areasUrban areas heating up more due to paved surfacesReduction in atmospheric temperatureQuestion 14 of 2015. What is the rate of global sea level rise per year as mentioned?1 mm2 mm3 mm4 mmQuestion 15 of 2016. What is a consequence of higher sea levels mentioned in the document?Increased coral growthDeadlier cyclonesReduced floodingStable coastal groundwaterQuestion 16 of 2017. Which Indian coastal area is threatened by sea level rise?Himalayan foothillsDeccan PlateauDeltas of Ganga and KrishnaThar DesertQuestion 17 of 2018. What is the difference between global and local sea level measurements?Global is measured by satellites, local by thermometersLocal includes factors like land subsidenceGlobal is less accurateLocal is measured annuallyQuestion 18 of 2019. What is the annual retreat rate of the Gangotri Glacier as mentioned?10 m22 m50 m76 mQuestion 19 of 2020. Which glacier is cited as an example of glacial retreat?Siachen GlacierGangotri GlacierPindari GlacierMilam GlacierQuestion 20 of 20 Loading...
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