The volcanic explosivity index (VEI) measures size of volcanic eruptions on a scale of 0 to 8.Between 1500 and 1981,one VEI 7 eruption occurred.This was ______________.
A) Tambora,in 1815
B) Krakatau,in 1883
C) Mt.St.Helens in 1980
D) Mt.Pelee in 1902
E) Mt.Vesuvius in 1631
Correct Answer:
Verified
Q4: The viscosity of magma is lowered by
Q5: The most peaceful eruptions are _.
A)Icelandic type
Q6: The presence of water _ the melting
Q7: The typical trend in a rising plume
Q8: If basaltic lava reaches the sea or
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
Q14: The dominant volcanic gas (commonly 90% or
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