lu4ca7sMathelove lu4ca7sMathelove

04-08-2016
Geography

Answered

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

Verified Answer :

meerkat18 meerkat18

06-08-2016

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.

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