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5 Written questions

5 Multiple choice questions

  1. rapidly flowing mixture of rock debris and water, muddy rock (indonesian)
  2. high viscosity, high gas straight up, smaller w/ narrow piles of pyroclastic particles, vertical eruption, on sides of other volcanoes, Paricutin Wizard Iland
  3. term for fragments of volcanic rock and lava that are blasted into the air (bomb, block, lapilli, ash, cinder)
  4. consists of rock , mineral, and volcanic glass fragments, size of pinhead
  5. build up of lava and debris surrounding a vent to form a volcano

5 True/False questions

  1. us hotspotsareas of volcanism not at plate boundaries


  2. volcanoopening in the earth's crust that allows magma, pyroclasts, and gases to escape


  3. lavamolten rock, ability to flow depends on silica and moisture content, made up of crystals, volcanic glass, and bubbles


  4. viscosityopening in the Earth's crust where magma and volcanic gases escape


  5. pyroclastic flowfast moving hot mixture of volcanic material,travels very quickly