Minerals are solid, inorganic substances that

a. exist naturally

b. are manufactured

c. are found exclusively on earth

d. are made of iron

Answer;

A. exist naturally

Minerals are solid, inorganic substances that exist naturally.

Explanation;

A mineral is a naturally occurring inorganic solid, with a definite chemical composition, and an ordered atomic arrangement.

Minerals are naturally occurring; they are not made by humans.

Minerals are inorganic; they have never been alive and are not made up from plants or animals.

Minerals are solids; they are not liquids (like water), or gases (like the air around you).

Minerals have a definite chemical composition; each one is made of a particular mix of chemical elements.

Minerals have an ordered atomic arrangement; the chemical elements that make up each mineral are arranged in a particular way - this is why minerals 'grow' as crystals.

answer; /// the correct )

i think the answer would d