MCQ Chapter 5 Geography Class 11 Maharashtra Board Global Climate Change 1. What happens to corals when ocean temperatures increase by 1°-2°C for a long time?They grow fasterThey bleach and turn whiteThey become more colorfulThey reproduce rapidlyQuestion 1 of 202. What is the primary cause of coral bleaching?at is the primary cause of coral bleaching?Increase in algae growthCorals expelling algae from their tissuesDecrease in ocean temperatureIncrease in calcium carbonateQuestion 2 of 203. What is paleoclimatology?Study of current weather patternsStudy of Earth’s past climateStudy of future climate predictionsStudy of atmospheric chemistryQuestion 3 of 204. Which of the following is used as proxy data to study past climate?Modern weather stationsTree ringsSatellite imageryThermometersQuestion 4 of 205. How do coral reefs indicate past climate changes?By changing color annuallyBy forming seasonal growth ringsBy growing larger in warmer climatesBy sinking into the oceanQuestion 5 of 206. What do ice cores reveal about past climate?Annual precipitation levels onlyInformation about climate each yearCurrent temperature trendsFuture climate predictionsQuestion 6 of 207. What climate pattern was observed in the Rajasthan desert 8000 years ago?Dry and hotWet and coolCold and aridWarm and aridQuestion 7 of 208. What is the current stage of the Earth’s ice age according to the document?Glacial periodInterglacial periodPost-glacial periodPre-glacial periodQuestion 8 of 209. What is an indicator of climate change mentioned in the document?Increase in polar ice capsIncrease in frequency of floodsDecrease in sea levelsReduction in CO2 levelsQuestion 9 of 2010. What has doubled since the 1970s due to global warming?Percentage of Earth’s land area undergoing droughtNumber of glaciersAmount of rainfallCoral reef coverageQuestion 10 of 2011. What does ppm stand for in the context of CO2 concentration?Parts per millionPercentage per meterParticles per moleculePressure per millimeterQuestion 11 of 2012. Since which year has the increase in CO2 concentration been phenomenal?1900195019802010Question 12 of 2013. What is a major human activity contributing to increased CO2 levels?AfforestationFossil fuel combustionOcean coolingGlacier formationQuestion 13 of 2014. How do rainforests contribute to climate regulation?By increasing CO2 levelsBy cooling the Earth through evaporationBy reducing ocean temperaturesBy increasing drought frequencyQuestion 14 of 2015. What is a natural cause of climate change mentioned in the document?Industrial emissionsVariations in the Sun’s energy outputDeforestationUrbanizationQuestion 15 of 2016. What are Milankovitch oscillations?Changes in Earth’s atmospheric pressureVariations in Earth’s orbit and axial tiltFluctuations in ocean currentsShifts in tectonic platesQuestion 16 of 2017. How do volcanic eruptions affect climate?By increasing solar radiationBy reducing sun’s radiation reaching EarthBy increasing ocean temperaturesBy stabilizing atmospheric CO2Question 17 of 2018. What is the Goldilocks Zone mentioned in the document?A region with high volcanic activityA habitable zone where Earth liesA zone with extreme temperaturesA region with no insolationQuestion 18 of 2019. What is the primary source of CO2 emissions according to the document?Volcanic activityFossil fuel combustionOcean evaporationPlant respirationQuestion 19 of 2020. What is an interglacial period?A cold period with expanding glaciersA warm period with receding glaciersA period with stable temperaturesA period with no ice formationQuestion 20 of 20 Loading...
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