What Is the Direct Control on Whether a Volcano Will

question 41

Multiple Choice

What is the direct control on whether a volcano will erupt violently or quietly send out a few flows?

• A)the composition of the magma, its temperature, and dissolved gas content
• B)the duration of the quiet interval since its last violent eruption
• C)what the total volume of the volcano has at the time of eruption
• D)the population density

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