What fear(s) or phobia(s) do you have? How intensely and how frequently are you affected by these fears or phobias, and how do you deal with them? What category in the DSM-5 do phobia's fall in?

1) what three conditions must be present for minerals to form through natural processes? 2) why are minerals considered inorganic substances? 3) how do oxides differ from other minerals that contain oxygen atoms? 4) how is a sulfide different from a sulfate? what makes native elements unique?