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5 Written questions

5 Matching questions

  1. seismic waves
  2. crust
  3. subduction
  4. mid-ocean ridges
  5. athenosphere
  1. a a soft layer below the lithosphere
  2. b an undersea mountain range where new ocean floor is produced and is a divergent place boundary
  3. c the layer of rock that forms Earth's outer skin
  4. d waves formed from an earthquake
  5. e the process by which ocean floor sinks beneath a deep-ocean trench and back into the mantle

5 Multiple choice questions

  1. the super continent that joined all present-day continents together
  2. dark rock with a fine texture that normally forms the oceanic crust
  3. Heat from what source in Earth causes convection currents?
  4. What evidence could Wegener not provide to support his idea?
  5. a deep valley that forms along the divergent boundary

5 True/False questions

  1. platessections of the lithosphere that fit together along cracks


  2. divergent boundarywhere two plates move apart


  3. outer corea layer of molten metal that surrounds the inner core


  4. fossilany trace of an ancient organism that has been preserved in rock


  5. scientific theorya well-tested concept that explains a wide range of observations