Multiple Choice
Effusive eruptions are related to which of the following?
A) magma with a 50 percent or lower silica content,rich in iron and magnesium
B) high-viscosity magma
C) magma with a 50-75 percent silica content,high in aluminum
D) the volcanic activity near Mount St.Helens
E) on the Pacific coast of Canada.
Correct Answer:
Verified
Correct Answer:
Verified
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