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Mathematics 15 Online
OpenStudy (pokemon23):

After collecting samples of igneous rocks, a student wishes to classify them as either intrusive or extrusive. Which characteristic of the samples might be the most useful to use? Please Help me @Physics

OpenStudy (pokemon23):

I know this is not math

OpenStudy (anonymous):

Is this Chemistry?

OpenStudy (pokemon23):

its earth science

OpenStudy (anonymous):

Bad at 'rocks' sorry

OpenStudy (pokemon23):

its ok

OpenStudy (pokemon23):

anyone can help me?

OpenStudy (anonymous):

The sizes of rocks can help. The magma inside the earth cools slowly hence larger rocks are obtained.. Thus larger rocks can be intrusive rocks while relatively smaller rocks might be extrusive rocks

OpenStudy (anonymous):

They also have grainy look. That might help

OpenStudy (pokemon23):

ty mr

OpenStudy (anonymous):

Np 'mr' ;)

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