What effect can a buildup of pesticides have over the long term environment

In the water cycle , when does water undergo a chemical change

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?

Knowing the importance of the essential elements, why would someone chose a diet that does not address all of them?