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Biology 15 Online
OpenStudy (anonymous):

Which of the following is a nonmetallic mineral resource? A. wood B. iron C. coal D. aggregate

OpenStudy (anonymous):

@Awesome781 @arabpride

OpenStudy (anonymous):

Coal.

OpenStudy (anonymous):

It's actually D. aggregate

OpenStudy (anonymous):

Hmm, well anthracite coal is also a non-metallic mineral. Of course, the other two types of coal are not generally considered minerals.

OpenStudy (anonymous):

In hindsight it definitely had to be D, since by the definition of "mineral" aggregate is automatically removed.

OpenStudy (anonymous):

Idk but it's just that I chose D. and it was the right answer

OpenStudy (anonymous):

I'm glad my bad answer didn't hurt your grade.

OpenStudy (anonymous):

lol thanks though

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