If you determine the composition of an igneous rock,you can deduce a number of things about the rock's origin.Which one of these is NOT one of those things?
A) the rate at which it cooled
B) the environment in which it formed
C) the original source of the magma
D) the exact age of the rock

Question

Quizplus · Accepted Answer

The exact age of the rock cannot be deduced by simply determining its composition. Other methods, such as radiometric dating, would need to be used to determine the age of the rock.

If You Determine the Composition of an Igneous Rock,you Can