In an oil spill, why does the oil not mix with the sea water

How do diseases caused by bacteria and diseases caused by viruses react to antibiotics?

The tubes transporting minerals and water upward are called ?

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?