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The reason for the difference in the chemical composition of the magma of violent volcanoes vs. gentle volcanoes is due mainly to:

A. differences in the composition of the rocks overlying the magma chamber.
B. geographic location in relation to tectonic plate boundaries.
C. the inclusion of metal that circulates upward from the Earth's core.
D. random differences in magma composition beneath the Earth's crust.



Answer :

GinnyAnswer

Final answer:

The chemical composition of magma in different volcanoes is influenced by interactions with crustal rocks, magma chamber processes, and plate tectonics.


Explanation:

The chemical composition of magma varies between violent and gentle volcanoes mainly due to interactions with crustal rocks and magma chamber processes.

Felsic magmas, with higher gas contents and viscosity, lead to explosive eruptions, while mafic magmas typically result in gentler eruptions.

Plate boundaries and tectonic settings play a role in determining the type of magma produced and volcanic behavior.


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