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There are two major controls on the viscosity of magma. those controls are:

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User Lobsang
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1 Answer

3 votes

Answer:

A magma's viscosity is largely controlled by its temperature, composition, and gas content (see downloadable programs at the bottom of this page). The effect of temperature on viscosity is intuitive. Like most liquids, the higher the temperature, the more fluid a substance becomes, thus lowering its viscosity.

Step-by-step explanation:

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User Ashishsingh
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