What is an population

How does natural selection change thephenotypes within a population over time?

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?

Plants consume most of their carbon from a. the soil b. the water c. the roots d. the air