3 Written Questions

1. describe and sketch the characteristics of a composite volcano, including is internal structure
2. explain how gas is dissolved in magma and how it behaves at different depths in a magma
3. what determines the viscosity of lava

3 Multiple Choice Questions

1. describe the type of magma and other general characteristics of a shield volcano
   1. basaltic, low sloping, magma flow, mafic
   2. ring of fire, subvergent boundary.
   3. increase in any increase likelyhood
   4. cone, sizemicity,
2. summarize the parts of the world that have the highest potential for volcanic eruptions and explain why.
   1. basaltic, low sloping, magma flow, mafic
   2. ring of fire, subvergent boundary.
   3. cone, sizemicity,
   4. increase in any increase likelyhood
3. sketch and describe 4 types of volcanoes
   1. shield (huge, low slopes low viscosity), cinder cone (grow along volcs, small, groups) , composite volcano (high viscosity, sharp slope), fissure eruption (mid ocean ridge)
   2. basaltic, low sloping, magma flow, mafic
   3. pressure low equals low gas content. pressure high is high gas content. low viscosity escape easily
   4. silica content; low viscosity=low silica content. lava flow. high viscosity=explosive

2 True/False Questions

1. increase in any increase likelyhood → describe how seismic events, volcanic glasses, and topographical changes can be used to understand and predict volcanic eruptions

   True        False

2. cone, sizemicity, → summarize the ways to assess the potential danger of a volcano and identify which areas around a volcano have the highest potential hazard

   True        False