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The rate at which an igneous rock cools is likely to determine

a.the rock's color.
b.the rock's density.
c.the size of the rock's crystals.
d.the rock's chemical composition.

1 Answer

6 votes
The answer to this question is C. the size of the rock's crystal. Rapid cooling results small crystals forming while larger crystals form when cooling occurs slowly. 
User Michal Aron
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