An eruption is classified as an explosive volcanic eruption based on the amount of which mineral found in the magma? A: silica B: carbon C: iron D: basalt

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asked Oct 5, 2017 187k views

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Dmitry Zaets · Answer 1 · 2017-10-10T05:13:09+0000

The correct answer is A. silica.

The amount of silica found in the magma determines the viscosity. The higher the silica in magma, the higher the viscosity of a magma. So the correct answer is silica. It is not among the other choices.

An eruption is classified as an explosive volcanic eruption based on the amount of which mineral found in the magma? A: silica B: carbon C: iron D: basalt

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