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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

TOPIC PRACTICE

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  1. Coastlines may change by erosion and deposition
  2. Coastlines do not exist on continents
  3. Coastlines form only by glaciers
  4. Coastlines are made of fossils
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  1. Cause of modern country borders
  2. Explanation of similar rocks fossils and coastlines on separate continents
  3. Cause of daily temperature change
  4. Cause of ocean water salinity
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  1. It was another name of Panthalassa
  2. It surrounded Pangaea from all sides
  3. It was a separating sea between Laurasia and Gondwanaland
  4. It was only the old name of the Atlantic Ocean
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  1. He did not use the term Pangaea
  2. He gave no fossil example
  3. He did not discuss coastline fit
  4. He did not give an adequate mechanical mechanism for continental movement
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  1. The assumption that distant continents always remained separate
  2. The assumption that fossils never form
  3. The assumption that oceans contain water
  4. The assumption that glaciers occur in cold regions
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  1. Similarity of present cities
  2. Old biological and geographical relation of southern landmasses
  3. Equal height of sea waves
  4. Modern political boundaries
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  1. Continents have equal population today
  2. Oceans never formed
  3. Landmasses were earlier joined and in different climatic positions
  4. All mountains were made by humans
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  1. It shows only present trade routes
  2. It shows gold forms in seawater
  3. It shows only Africa's climate
  4. It shows possibility of old mineral source and land connection
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  1. It was not considered strong enough to move continental masses
  2. It was completely unrelated to Earth's rotation
  3. It was based only on plant fossils
  4. It was another name for the Tethys Sea
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  1. It was not related to Sun and Moon
  2. It explained only present weather
  3. Such force was not considered sufficient to move continents
  4. It disproved fossils
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  1. Ocean floor was considered a resistant solid medium
  2. Oceans were made entirely of gas
  3. Continents had no rocks
  4. Fossils did not exist
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  1. Lack of the name Pangaea
  2. Lack of mechanism for continental movement
  3. Absence of coastline evidence
  4. Absence of fossil evidence
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  1. It shows mobility of the ocean floor
  2. It calls Pangaea an ocean
  3. It rejects fossils
  4. It calls continents completely fixed
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  1. They should be treated as signs of old climate and position not present weather
  2. Both should be treated as proof of modern industry
  3. Both should be treated as proof of political boundary
  4. Both should be treated as proof of ocean salinity
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  1. India was the water part of Panthalassa
  2. India was a fixed part of modern Europe
  3. India was part of the ancient southern supercontinent and later moved northward
  4. India was always west of the Atlantic
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  1. Tethys is the modern name of Panthalassa
  2. Tethys sediments and later collision are linked with the context of Himalayan formation
  3. Tethys is only the name of the South Pole
  4. Tethys is a plant fossil
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  1. As two modern cities
  2. As northern and southern parts of Pangaea
  3. As two rivers
  4. As two fossils
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  1. Because both biological and geological independent clues are obtained
  2. Because both show present weather
  3. Because both create political borders
  4. Because both measure ocean depth
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  1. Not only coastal shape but geological connection was also possible
  2. Both continents are one country today
  3. Weather is same on both continents
  4. Both continents have no rivers
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  1. It started scientific debate on mobility of continents
  2. It proved Earth fixed
  3. It denied the existence of oceans
  4. It called all fossils false
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  1. Pangaea was ocean and Panthalassa was land
  2. Both were fossils
  3. Pangaea was joined landmass and Panthalassa was the ocean around it
  4. Both were tidal forces
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  1. Mesosaurus fossil evidence
  2. Tillite glacial evidence
  3. Panthalassa plant fossil evidence
  4. Placer deposits mineral evidence
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  1. Coastline rock fossil glacial and mineral evidence
  2. Language religion city and market
  3. Crop price road and industry
  4. Today's rainfall cloud and wind
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  1. Time of present weather
  2. Old climatic conditions and former latitudinal position
  3. Present river depth
  4. Number of modern cities
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  1. Possibility of old environment and land connection
  2. Present ocean salinity
  3. Modern country borders
  4. Present road network

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