MCQ Chapter 6 Geography Class 11 Maharashtra Board Ocean Resources 1. What is the primary purpose of the Echo Sounder?Measuring ocean currentsDetermining the depth of the sea bedDetecting marine lifeMapping ocean temperaturesQuestion 1 of 202. Which part of the ocean floor is known as the continental shelf?The steep drop after the continental slopeThe submerged portion of continents bordering coastal areasThe deepest part of the oceanThe flat, extensive tops of oceanic ridgesQuestion 2 of 203. What percentage of the oceanic area does the continental shelf occupy?8.5%66%7.6%12%Question 3 of 204. Why is the continental shelf rich in plankton?Due to its steep slopeBecause sunlight reaches this part of the ocean bedDue to volcanic activityBecause of deep trenchesQuestion 4 of 205. Which of the following is a major fishing ground on the continental shelf?Mariana TrenchGrand BanksChagos PlateauJava TrenchQuestion 5 of 206. What is a significant resource found on the continental shelf besides fish?Manganese nodulesNatural oil and gasCoral reefsOceanic ridgesQuestion 6 of 207. Which mineral is NOT mentioned as being extracted from the continental shelf?DiamondsChromiteManganesePhosphoriteQuestion 7 of 208. What is the typical depth range of the continental shelf from sea level?200 to 4000 meters180 to 200 meters4000 to 6000 meters6000 to 11000 metersQuestion 8 of 209. What characterizes the continental slope?Broad, shallow plainsA sharp drop with a gradient of 2° to 5°Flat, extensive topsGentle slopes with volcanic activityQuestion 9 of 2010. What is the approximate percentage of the ocean area covered by the continental slope?7.6%8.5%66%12%Question 10 of 2011. What resource is found on the continental slope?PlanktonMethane hydrateManganese nodulesCoral reefsQuestion 11 of 2012. What is an example of a submarine canyon found near Africa?Krishna-GodavariCongo CanyonMumbai HighChagos PlateauQuestion 12 of 2013. What covers the majority of the oceanic floor area?Continental shelfContinental slopeAbyssal plainsOceanic trenchesQuestion 13 of 2014. What type of activity produces relief on the abyssal plains?Tidal energyVolcanic and tectonic activitiesPlankton growthDesalination processesQuestion 14 of 2015. What are manganese nodules primarily composed of?Plankton and coralIron, nickel, cobalt, and copperSodium chloride and potassiumSand and gravelQuestion 15 of 2016. What is the deepest part of the ocean called?Continental shelfAbyssal plainsOceanic trenchesOceanic ridgesQuestion 16 of 2017. How deep is the Mariana Trench in the Pacific Ocean?7.7 km11 km6 km4 km ELANATION: The Mariana Trench in the Pacific Ocean is around 11 km deep.Question 17 of 2018. What is an example of an oceanic plateau mentioned in the text?Grand BanksChagos PlateauMumbai HighJava TrenchQuestion 18 of 2019. Which type of oceanic island is Madagascar?Volcanic islandCoral islandContinental islandSubmerged islandQuestion 19 of 2020. What type of island is the Hawaiian Island?Continental islandVolcanic islandCoral islandSubmerged islandQuestion 20 of 20 Loading...
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