Wegener's Continental Drift Hypothesis
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Questions and Answers

What was Alfred Wegener’s hypothesis called?

  • Tidal Forces Hypothesis
  • Ocean Current Hypothesis
  • Pangaea Drift Hypothesis
  • Continental Drift Hypothesis (correct)
  • What was the main criticism from Wegener's colleagues regarding his hypothesis?

  • The temperature of the Earth
  • The lack of a plausible mechanism for continental movement (correct)
  • The number of published editions
  • The size of the Pangaea landmass
  • What was Wegener's book called where he presented his continental drift hypothesis?

  • The Origin of Continents and Oceans (correct)
  • The History of Icebreakers
  • The Future of Pangaea
  • The Theory of Tides
  • According to Wegener, around how many years ago were all continents joined into Pangaea?

    <p>300 million years ago</p> Signup and view all the answers

    What was one of the early hypotheses about moving continents?

    <p>Centrifugal forces</p> Signup and view all the answers

    Why did one scientist conclude that Earth would stop rotating in less than a year if centrifugal forces were strong enough to move continents?

    <p>The expected force would slow down Earth's rotation significantly</p> Signup and view all the answers

    Why was Wegener's hypothesis of continental drift not widely accepted initially?

    <p>The absence of a mechanism to explain the drift</p> Signup and view all the answers

    What concept did Arthur Holmes elaborate on in relation to continental drift?

    <p>Thermal convection in the mantle</p> Signup and view all the answers

    How did the technological advances mentioned in the text impact the acceptance of continental drift?

    <p>They provided tools to gather more evidence for plate tectonics</p> Signup and view all the answers

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