What type of interaction occurs between organisms fighting for the same resources?

Regarding most of the narrator’s story, which word best describes the tone?

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?

Tides that occur during the new and full moons