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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.

Medium · Level 3 · 25 questions

Practice questions

01What was the basic basis for explaining the present position of continents in Wegener's theory?

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02What is the correct pair of two large landmasses formed after the breakup of Pangaea?

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03Why is the Tethys Sea important in continental drift?

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04What is the correct meaning of Panthalassa in Continental Drift Theory?

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05Why is the similarity of African and South American coasts called jigsaw fit?

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06What is one limitation of jigsaw fit evidence?

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07What does similar rock structure show in support of continental drift?

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08If a question mentions continuity of similar mountain ranges which evidence will be appropriate?

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09Why is the Mesosaurus fossil evidence considered effective?

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10How do Glossopteris fossils support the concept of Gondwanaland?

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11Tillite deposits provide evidence of what in continental drift?

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12Why is the direction of old glacial striations useful in continental drift?

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13Finding coal in Antarctica is related to which type of evidence?

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14Why are placer deposits important in support of Wegener?

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15On which point was the biggest criticism of Wegener focused?

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16Which two forces did Wegener mention for continental movement?

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17Why were the Sun and Moon mentioned in the explanation of tidal force?

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18How did plate tectonics strengthen Wegener's idea?

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19Why was Wegener's theory not fully accepted initially?

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20If a question mentions India's relation with an ancient southern landmass what will be the correct answer?

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21Which is a suitable group of landmasses linked with Gondwanaland?

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22Which landmasses are mainly understood in Laurasia?

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23Similar glacial deposits on southern continents strengthen which idea?

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24What is the main difference between biological evidence and geological evidence?

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25What is the best meaning of climatic evidence in continental drift?

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