Oml kill meh

What did hunter gathers do to alter the environment?

In general, characteristics that an organism survive and reproduce become more common over time. what mechanism of evolution causes this?

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?