Geology of Ethiopia and the Horn: Introduction
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Questions and Answers

What was the name of the supercontinent proposed by Alfred Wegener in his Continental Drift Theory?

  • Gondwanaland
  • Rodinia
  • Pangaea (correct)
  • Laurasia
  • Which geological observation was NOT one of Alfred Wegener's principal observations supporting the Continental Drift Theory?

  • Fit of the continents' opposing coastlines
  • Match of mountain belts and rock types
  • Alignment of magnetic fields in rocks (correct)
  • Distribution of fossils across continents
  • Which geological processes result in the building of structural and volcanic features like plateaus, rift valleys, and volcanic mountains?

  • Endogenic processes (correct)
  • Volcanic activity
  • Erosion and deposition
  • Exogenic processes
  • Which era is known as the age of mammals according to the geological time scale?

    <p>Cenozoic Era</p> Signup and view all the answers

    Which technique uses geological evidence to assign comparative ages to rocks?

    <p>Relative dating</p> Signup and view all the answers

    What does geology study?

    <p>The evolution of the Earth, its materials, and the processes acting upon them</p> Signup and view all the answers

    How is geological understanding obtained when no one was around to witness past events?

    <p>By using clues from what can be seen, measured, and inferred</p> Signup and view all the answers

    What method can provide clues to the origin of rocks?

    <p>Geochemistry</p> Signup and view all the answers

    Who explained the continental drift theory?

    <p>Alfred Wegener</p> Signup and view all the answers

    What was the name of the single huge continent according to the continental drift theory?

    <p>Pangaea</p> Signup and view all the answers

    What is the concept proposed by Wegener to explain the arrangement of continents and the distribution of fossils and mountain belts?

    <p>Supercontinent theory</p> Signup and view all the answers

    Which geological observation was NOT one of Alfred Wegener's principal observations supporting the Continental Drift Theory?

    <p>Distribution of minerals</p> Signup and view all the answers

    What is the largest unit of geological time on the geological time scale?

    <p>Eon</p> Signup and view all the answers

    What are the endogenic geological processes that result in the building of structural and volcanic features like plateaus, rift valleys, and volcanic mountains?

    <p>Volcanic activity and tectonic processes</p> Signup and view all the answers

    Which geological technique uses evidence to assign comparative ages to rocks?

    <p>Relative dating</p> Signup and view all the answers

    What method can be used to find the ages of rocks, usually from the radioactive elements they contain?

    <p>Geochronology</p> Signup and view all the answers

    Which Australian climatologist explained the continental drift theory?

    <p>Alfred Wegener</p> Signup and view all the answers

    According to the continental drift theory, what were the earth's continents once bunched up together to form?

    <p>Pangaea and Thethys sea</p> Signup and view all the answers

    Which geological process results in the building of structural and volcanic features like plateaus, rift valleys, and volcanic mountains?

    <p>Volcanism</p> Signup and view all the answers

    What are the indirect methods that can provide clues for geological understanding?

    <p>Geophysics, geochemistry, geochronology</p> Signup and view all the answers

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