EAPS 106 Unit 5 Volcanoes Lecture
Questions And Correct Answers
\Q\.In the movie Volcano, what does Dr. Amy Barnes get wrong about volcanism? - ANSWERS✔-
Tectonic plates float on an ocean of molten rock.
\Q\.Which process will not cause hot rocks to melt? - ANSWERS✔-Increasing pressure.
\Q\.How does adding water cause a hot rock to melt? - ANSWERS✔-By breaking long silica
chains causing the melting temperature to decrease.
\Q\.What process causes volcanism at subduction zones? - ANSWERS✔-Hydration induced
melting
\Q\.What process causes volcanism at hotspots? - ANSWERS✔-Depressurized melting
\Q\.What is a consequence of tectonic plates moving over hotspots? - ANSWERS✔-Long chains
(tracks) of volcanoes.
\Q\.What type of volcanoes are generated by low viscosity magmas? - ANSWERS✔-Shield
volcanoes
\Q\.What kind of volcanoes are generated when tephra is thrown out of their vents? -
ANSWERS✔-Cinder cones
Questions And Correct Answers
\Q\.In the movie Volcano, what does Dr. Amy Barnes get wrong about volcanism? - ANSWERS✔-
Tectonic plates float on an ocean of molten rock.
\Q\.Which process will not cause hot rocks to melt? - ANSWERS✔-Increasing pressure.
\Q\.How does adding water cause a hot rock to melt? - ANSWERS✔-By breaking long silica
chains causing the melting temperature to decrease.
\Q\.What process causes volcanism at subduction zones? - ANSWERS✔-Hydration induced
melting
\Q\.What process causes volcanism at hotspots? - ANSWERS✔-Depressurized melting
\Q\.What is a consequence of tectonic plates moving over hotspots? - ANSWERS✔-Long chains
(tracks) of volcanoes.
\Q\.What type of volcanoes are generated by low viscosity magmas? - ANSWERS✔-Shield
volcanoes
\Q\.What kind of volcanoes are generated when tephra is thrown out of their vents? -
ANSWERS✔-Cinder cones
