Evaluate the age of rocks. you find 3 undisturbed rock layers. the middle layer is 120 years old. what can you say about the ages of the layers above and below it?

What happens as electrons move along the chain of molecules known as the electron transport chain? they gain energy, which causes atp molecules to lose phosphate groups. they gain energy, which causes h *ions to join with oxygen to produce water. they lose energy, which is then used by the cell to make atp. they lose energy, which is then used to break down atp.