Question

Nature of volcanic eruptions (quiet vs explosive) largely depends on magma's _______ which, in turn, generally increases with increasing ________ a. pressure, density b. viscosity, age c. density, temperatures d. viscosity, silica content

Answer 1

The nature of volcanic eruptions is largely determined by the magma's viscosity and silica content.

Step-by-step explanation:

The nature of volcanic eruptions largely depends on magma's viscosity, which, in turn, generally increases with increasing silica content.

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