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Geography

Continental Drift Theory and its evidence

In Class 11 Geography, this topic explains the Continental Drift Theory within the chapter “Distribution of Oceans and Continents.” Students learn Alfred Wegener’s idea that the continents were once joined as Pangaea and gradually moved apart. They examine evidence such as the matching shapes of coastlines, similar fossils, continuous rock formations, mountain belts, and past glacial deposits found on continents now far apart. The topic also introduces the theory’s limitations and its importance in the later development of plate tectonics.

Hard · Level 1 · 25 questions

Practice questions

01What is the most appropriate reason for not treating coastline fit alone as decisive evidence in Wegener's evidences?

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02In Continental Drift Theory what problem does the concept of Pangaea solve?

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03Which is the correct analysis of the position of the Tethys Sea?

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04How is Wegener's biggest scientific weakness understood?

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05Mesosaurus fossil evidence is considered serious because it challenges what?

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06What type of clue does the distribution of Glossopteris fossils give for Gondwanaland?

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07What conclusion becomes stronger by studying tillite deposits and glacial striations together?

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08How is the relation between placer gold in Ghana and source areas in Brazil read in support of Wegener?

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09Why was Wegener's explanation of pole fleeing force considered insufficient?

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10What was the main problem in Wegener's tidal force explanation?

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11On what basis was the idea of continents drifting over the ocean floor criticised?

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12Which basic weakness of Wegener did plate tectonics later explain better?

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13How does the idea of sea floor spreading indirectly support Wegener's theory?

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14What caution is needed when reading coal and glacial evidence in Antarctica together?

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15What is the most appropriate meaning of linking the Indian subcontinent with Gondwanaland?

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16Which statement is most appropriate about the Tethys Sea and the Himalaya?

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17Instead of memorising Laurasia and Gondwanaland only as names how should they be understood?

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18If both similar fossils and similar rock structures are found on separate continents why does the conclusion become stronger?

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19When jigsaw fit of Africa and South America is linked with rock evidence what conclusion becomes better?

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20Why is Wegener's theory considered historically important instead of being completely rejected?

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21What is the correct correction if there is confusion between Pangaea and Panthalassa?

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22Which matching is incorrect among evidences of continental drift?

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23Which evidence group gives multi layered support in continental drift?

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24Old climatic evidences are called paleoclimate in continental drift because they show what?

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25The importance of fossils linked with Gondwanaland is not limited to finding similar organisms because they show what?

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