What are the two types of minerals? a.
industrial and environmental
b.
valuable and invaluable
c.
metallic and nonmetallic
d.
important and unimportant

The correct answer is C. Metallic and nonmetallic

Explanation:

Minerals are natural substances with defined properties. Moreover, minerals are essential for living beings and they compose rocks. Besides this, minerals are classified into two broad categories according to their composition: metallics and non-metallics. In this context, the metallic category includes any mineral such as aluminum or iron because these minerals contain metals, while others such as gravel or halite (nonmetallic) do not. According to this, the correct answer is C.

me no say

answer; /// direct cinema limits the use of narrators; ; ; and: : : : allows the audience to observe events as they occur;