Question

which of the following is an example of a mineral?
o nitrogen
o magnesium
o hydrogen
o carbon

Explanation:

Minerals are naturally - occurring, inorganic substances with a definite chemical composition and a characteristic crystal structure. Magnesium is a mineral. Nitrogen, hydrogen, and carbon are elements, but not typically referred to as minerals in the context of nutrition and geology in the same way magnesium is. Magnesium is an essential mineral for the human body and is also found in various geological formations.

Answer:

Magnesium