Question

You find a mysterious, dull substance on the ground and pick it up for a closer look. It is powdery, very light, and soft to the touch. The substance is most likely

I. an organic mineral
II. a metallic mineral
III. a nonmetallic mineral

I only
II only
III only
I and II
I and III

Answer 1

I and III only due to the fact that nonmetallic minerals and organic minerals can be rock sediments