MCQ Chapter 7 Geography Class 11 Maharashtra Board Indian Ocean – Relief and Strategic Importance 1. What type of islands are Lakshadweep and Maldives?Volcanic islandsCoral atollsSubmerged mountainsContinental fragmentsQuestion 1 of 202. Which island is the largest in the Bay of Bengal?AndamanNicobarSri LankaSumatraQuestion 2 of 203. What type of islands are most of the Andaman and Nicobar Islands?Coral islandsVolcanic islandsAtollsContinental islandsQuestion 3 of 204. Which island is NOT mentioned along the Australian coast?AshmoreChristmasCocosSeychellesQuestion 4 of 205. What do ocean basins indicate on the ocean bottom?Deep flat areasHigh ridgesCoral reefsTrenchesQuestion 5 of 206. How many major ocean basins are there in the Indian Ocean?FiveSevenTenTwelveQuestion 6 of 207. Which ocean basin is NOT mentioned in the Indian Ocean?Oman basinArabian basinSomali basinPacific basinQuestion 7 of 208. Where are most trenches in the Indian Ocean located?Western boundaryEastern boundaryNorthern boundarySouthern boundaryQuestion 8 of 209. What is the deepest trench mentioned in the Indian Ocean?Ob TrenchSunda TrenchJava TrenchSomali TrenchQuestion 9 of 2010. Why is the eastern boundary of the Indian Ocean seismically active?Coral reef formationPlate movementsOcean currentsSalinity changesQuestion 10 of 2011. What influences the movement of oceanic water besides temperature?SalinityWind speedCoral growthIsland formationQuestion 11 of 2012. Why are isotherms not drawn on the continental part in the temperature maps?No temperature variationLandmasses are not part of the ocean studyLack of dataHigh salinityQuestion 12 of 2013. Why is the temperature lower in the Arabian Sea compared to the Bay of Bengal?Monsoonal windsHigher salinityDeeper trenchesFewer riversQuestion 13 of 2014. When is the temperature higher in the southern portion of the Indian Ocean?NE monsoonPre SW monsoonSW monsoonWinter solsticeQuestion 14 of 2015. What is the average salinity of sea water?25‰30‰35‰40‰Question 15 of 2016. Why does the Arabian Sea have higher salinity than the Bay of Bengal?More river dischargesHigh temperature and low rainfallStronger currentsFewer islandsQuestion 16 of 2017. During which season is the salinity lowest in the Bay of Bengal?NE monsoonPre SW monsoonSW monsoonWinter solsticeQuestion 17 of 2018. What contributes to high salinity in the Arabian Sea throughout the year?River inflowsHigh evaporation and low river inputCold currentsCoral reefs ELANATION: High evaporation and minimal river input maintain high salinity in the Arabian Sea year-round.Question 18 of 2019. How do ocean currents in the northern Indian Ocean differ from other oceans?Influenced by monsoon windsNo warm currentsNo cold currentsUniform directionQuestion 19 of 2020. What is the direction of currents in the northern Indian Ocean during summer?AnticlockwiseClockwiseEast to westWest to eastQuestion 20 of 20 Loading...
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