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5 Written questions

5 Matching questions

  1. a tall, cone-shaped mountain in which layers of lava alternate with layers of ash and other volcanic materials
  2. a weak spot in the crust where magma has come to the surface
  3. a major belt of volcanoes that rims the Pacific Ocean
  4. a hot, fast-moving type of lava that hardens to form smooth, ropelike coils
  5. a material found in magma that is formed from the elements oxygen and silicon
  1. a silica
  2. b composite volcano
  3. c Ring of Fire
  4. d volcano
  5. e pahoehoe

5 Multiple choice questions

  1. viscosity
  2. caldera
  3. shield volcano
  4. cinder cone
  5. lava

5 True/False questions

  1. the molten mixture of rock-forming substances, gases, and water from the mantlemagma


  2. describes a volcano that is not currently active, but that may become active in the futureextinct


  3. a deposit of hardened magma in a volcano's pipevolcanic neck


  4. describes a volcano that is no longer active and is unlikely to erupt againextinct


  5. the expulsion of ash, cinders, bombs, and gases during an explosive volcanic eruptionpyroclastic flow