The dominant volcanic gas (commonly 90% or more of total gas) is _____________.
A) water vapor (H2O)
B) carbon dioxide (CO2)
C) sulfur dioxide (SO2)
D) hydrogen sulfide (H2S) with its rotten egg smell
E) carbon monoxide (CO)
Correct Answer:
Verified
Q9: The volcanic explosivity index (VEI)measures size of
Q10: Slow flowing,more viscous basaltic lava commonly has
Q11: Silicon and oxygen link up to form
Q12: Hawaiian volcanoes unlikely to erupt include _.
A)Haleakala
Q13: Over _ of Earth's magma extruded through
Q15: Why does the magma from some volcanoes
Q16: A shield volcano has a great _.
A)height
Q17: Over _ of volcanism is associated with
Q18: The three Vs of volcanology are _.
A)viscosity,volatiles,velocity
B)viscosity,volatiles,volume
C)viscosity,velocity,volume
D)volatiles,volume,variability
E)volatiles,velocity,variability
Q19: Rock may melt by _.
A)lowering the pressure
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