Chemical reactions improving concentration and focus is my goal i think that hormoans can open nuero path ways improving thinking and mood and everything

Abnormal softening of a gland is known as

The distribution of related animals and plants across the world

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?