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IAS Preparation – Continental Drift Theory | Geography MCQs

IAS Preparation – Continental Drift Theory | Geography MCQs

IAS Preparation – Continental Drift Theory | Geography MCQs Q1. Consider the following statements/निम्नलिखित कथनों पर विचार कीजिये
  1. According to Wegener, the SIALIC continents are lighter and is floating over the denser SIMA/वेगनर के अनुसार सियलिक महाद्वीप हल्के होते है एवं वो सघन SIMA  पर तैरते है |
  2. Pangea broke into Gondwanaland to the north and Laurentia to the south of Tethys./पैंजिया टेथिस सागर के उत्तर में गोंडवानालैंड तथा दक्षिण में लारेशिया के रूप में विभाजित है |
  3. Tidal force is due to the attraction of the moon and the sun that develops tides in oceanic waters/ज्वारीय बल चन्द्रमा तथा सूर्य के बीच आकर्षण से होता है जो समुंद्री जल में ज्वार उत्पन्न करता है |
Which of the above statement/s is/are correct/इनमे से कौन सा कथन सही है
  • Only 3
  • 1 and 3  
  • 2 and 3
  • 1,2,3
[showhide type=”links1″ more_text=”Show Answer” less_text=”Hide Answer”] Ans. B is correct.
  • Statement 1 is correct Wegener asserted that the SIALIC continents are lighter and is floating over the denser SIMA.
  • Statement 2 is not correct A sea called Tethys divided the Pangaea into two huge landmasses:  Laurentia (Laurasia) to the north and Gondwanaland to the south of Tethys.
  • Statement 3 is correct Tidal force is due to the attraction of the moon and the sun that develops tides in oceanic waters.
[/showhide] Q2. Consider the following statements/निम्नलिखित कथनों पर विचार कीजिये
  1. Earth has a bulge at the equator which is due to the revolution of the earth/पृथ्वी के परिक्रमण के कारण यह भूमध्य रेखा पर उभरी हुई है
  2. Centrifugal force increases as we move from poles towards equator/ध्रुवों से भूमध्य रेखा की ओर चलने पर अपकेंद्री बल में वृद्धि होती है |
  3. South America and Africa seem to fit in with each other, especially, the bulge of Brazil fits into the Gulf of Guinea/ दक्षिणी अमेरिका तथा अफ्रीका को एक दूसरे के अंदर फिट किया जा सकता है, विशेषरूप से ब्राज़ील के उभार को गिनी की खाड़ी में |
Which of the above statement/s is/are correct/इनमे से कौन सा कथन सही है:-
  • Only 1
  • 1 and 3  
  • 2 and 3
  • 1,2,3
[showhide type=”links2″ more_text=”Show Answer” less_text=”Hide Answer”] Ans. C is correct.
  • Statement 1 is not correct Earth has a bulge at the equator which is due to the rotation of the earth.
  • Statement 2 is correct Centrifugal force increases as we move from poles towards equator.
  • Statement 3 is correct South America and Africa seem to fit in with each other, especially, the bulge of Brazil fits into the Gulf of Guinea.
[/showhide] Q3. Consider the following statements/निम्नलिखित कथनों पर विचार कीजिये :
  1. Rich placer deposits of gold are found on the Ghana coast/सोने के बड़े निक्षेप घाना तट पर पाए जाते हैं
  2. Mesosaurus was a small reptile adapted to shallow brackish water/मेसोसारस एक छोटा रेंगने वाला जीव  था जो कि उथले खारे पानी में रह सकता था।
  3. North and South America on one side and Australia on the other fit along the mid-Atlantic ridge./एक तरफ उत्तरी एवं दक्षिणी अमेरिका और दूसरी और आस्ट्रेलिया मध्य अंटलांटिक चोटी में फिट होते है |  
Which of the above statement/s is/are correct /इनमे से कौन सा कथन सही है:-
  • Only 1
  • 1 and 2  
  • 2 and 3
  • 1,2,3
[showhide type=”links3″ more_text=”Show Answer” less_text=”Hide Answer”] Ans. B is correct.
  • Statement 1 is correct  Rich placer deposits of gold are found on the Ghana coast
  • Statement 2 is correctMesosaurus was a small reptile adapted to shallow brackish water.
  • Statement 3 is not correct   North and South America on one side and Africa and Europe on the other fit along the mid-Atlantic ridge.
[/showhide] Q4. Consider the following statements/निम्नलिखित कथनों पर विचार करें :
  1. Wegner’s  theory takes Oceans and Continent both into consideration/वेगनर का सिद्धांत महासागर एवं महाद्वीप दोनों को महत्व देता है |
  2. Forces like buoyancy, tidal currents and gravity are too weak to be able to move continents./उत्प्लावन बल,ज्वारीय धारा एवं गुरुत्व इतने दुर्बल है की ये महाद्वीप का विस्थापन नहीं कर सकते है |
  3. Wegener’s theory assembled all earlier theories into one which became basis of plate tectonics./सभी पहले के सिद्धांतों को एक में इकट्ठा किया जो प्लेट  विवर्तनिकी का आधार बना |
Which of the above statement/s is/are correct /इनमे से कौन सा कथन सही है ?
  • Only 1
  • 2 and 3  
  • Only 2
  • 1,2,3
[showhide type=”links4″ more_text=”Show Answer” less_text=”Hide Answer”] Ans. B is correct.
  • Statement 1 is not correct Wegner’s  theory does not take Oceans into consideration.
  • Statement 2 is correct Forces like buoyancy, tidal currents and gravity are too weak to be able to move continents.
  • Statement 3 is correct Wegener’s theory assembled all earlier theories into one which became basis of plate tectonics.
[/showhide] Q5. Consider the following statements/निम्नलिखित कथनों पर विचार करें
  1. Arthur Holmes in 1930s discussed the possibility of convection currents operating in the mantle portion./1930  के दशक में आर्थर होम्स ने मैंटल में संवहन धाराओं के प्रभाव की सम्भावना व्यक्त की |
  2. The concept that SIAL moving on SIMA was considered as a limitation of Wegener’s theory./यह अवधारणा कि सियाल ,सिमा पर तैर रहा है वेगनर के सिद्धांत की एक त्रुटि थी |
  3. Continents do not flow over oceans, continents and ocean are part of lithosphere./   महाद्वीप महासागरों पर प्रवाह नहीं करते हैं ये दोनों स्थलमंडल के अंग है |
Which of the above statement/s is/are correct/इनमे से कौन सा कथन सही है  
  • Only 1
  • 1 and 3  
  • Only 2
  • 1,2,3
[showhide type=”links5″ more_text=”Show Answer” less_text=”Hide Answer”] Ans. D is correct.
  • Statement 1 is correct  Arthur Holmes in 1930s discussed the possibility of convection currents operating in the mantle portion.
  • Statement 2 is correct The concept that SIAL moving on SIMA was considered as a limitation of Wegener’s theory.
  • Statement 3 is correct Continents do not flow over oceans, continents and ocean are part of lithosphere.
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