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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.

Expert · Level 4 · 25 questions

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  1. Because its discovery and confirmation happened after Wegener
  2. Because it is a river process
  3. Because it occurs only on the Moon
  4. Because it is a fossil plant
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  1. They showed symmetrical magnetic records on both sides of oceanic ridges
  2. They showed the shape of river deltas
  3. They told daily rainfall timing
  4. They measured only plant colour
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  1. It gave a possible direction for a driving mechanism
  2. It proved continents fixed
  3. It rejected all fossils
  4. It made Panthalassa a mountain
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  1. It was completely wrong
  2. It was an early strong basis for the idea of a dynamic Earth
  3. It was only local weather forecasting
  4. It was only a maritime trade plan
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  1. Because other explanations of some organism distributions may also be possible
  2. Because fossils are never real
  3. Because fossils are only modern
  4. Because fossils do not make maps
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  1. Pangaea was a united landmass and Panthalassa was the ocean
  2. Pangaea was a glacier
  3. Pangaea was a fossil plant
  4. Pangaea was a river
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  1. India's geological and fossil evidence links it with the southern supercontinent
  2. India always remained at the North Pole
  3. India was never a landmass
  4. India is only a modern island
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  1. Because it involves gradual division and further movement
  2. Because Pangaea never existed
  3. Because oceans cannot form
  4. Because fossils formed in one day
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  1. Because geological shelf rock and fossil evidences are also necessary
  2. Because maps do not show oceans
  3. Because maps are always empty
  4. Because maps only show weather
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  1. Explaining similar evidences on separated continents
  2. Daily amount of rainfall
  3. Cleaning of rivers
  4. Price of agricultural production
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  1. Ancient climate indicators do not match present latitude
  2. Every continent has the same weather today
  3. Climate is formed only by sea colour
  4. Glaciers occur only in cities
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  1. Accept the evidences and also write the weakness of driving mechanism
  2. Write the theory as fully true without reason
  3. Reject all evidences
  4. Treat the answer complete by writing only Pangaea
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  1. Possibility of formerly connected cold landmasses
  2. Expansion of modern deserts
  3. Marine fish farming
  4. Present urbanization
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  1. Wegener emphasized former connection and drift rather than permanent land bridges
  2. Wegener rejected fossils
  3. Land bridge theory measures plates
  4. Neither relates to fossils
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  1. They were parts of a former united landmass
  2. They were never on Earth
  3. They were only glaciers
  4. They are modern artificial islands
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  1. He suggested continents can change position over geological time
  2. He said continents are water
  3. He said oceans are absent
  4. He said there are no rocks on Earth
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  1. Coastal fit rock similarity fossils and glacial evidence
  2. Satellite motion GPS and radar
  3. Weather apps and modern sensors
  4. Census maps and transport
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  1. To show present continents in their possible former united form
  2. To reduce river length
  3. To make weather forecasts
  4. To change ocean colour
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  1. So that the explanation of former connection becomes more reliable
  2. So that fossils change colour
  3. So that oceans dry up
  4. So that Earth's rotation stops
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  1. His evidences were important but the mechanism of movement was incomplete
  2. He gave no evidence
  3. He used all modern instruments
  4. He called oceans landmasses
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  1. Similar fossils and glacial evidence are widespread in Gondwana lands
  2. There are no rocks in the Southern Hemisphere
  3. There are no oceans in the Southern Hemisphere
  4. Gondwana is a modern city
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  1. Analysis of evidences along with their limitations
  2. Memorizing only the definition
  3. Drawing only Pangaea
  4. Writing only the ocean name
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  1. Inadequate explanation of driving forces
  2. No mention of Pangaea
  3. Absence of fossil evidence
  4. Complete absence of coastal similarity
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  1. Coastal clue then rock and fossil similarity then palaeoclimatic support
  2. Rainfall then trade then population
  3. Eclipse then river then city
  4. Soil colour then crop then tax
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  1. It was an evidence-based theory with an incomplete mechanism but high influence
  2. It was a myth without evidence
  3. It was only a rule of maritime trade
  4. It was a modern GPS theory

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