Any korean here wana be my friend plz comment down​​​​

Can you think of a way a rock unit with an older fossil could be above a rock until with a younger fossil? describe the scenario.

When you turn on a battery-operated device, an electrical circuit is

Organ systems work to maintain homeostasis by creating energy to allow systems to function, releasing hormones to create or end body reactions, and eliminating waste to prevent illness. t or f