Volcanic ash from an eruption is hazardous because it a. could cause tsunamis and flood coastal areas b. could mix with snow or water and cause mudslides

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?