Thomas was interested in how the disruption of rock layers can be used to find a rock’s age. Which of the following are examples of how rock layers may be disturbed or changed? Choose the three that apply. A. igneous intrusion
B. superposition
C. extrusion
D. fault
E. fossil formation

Which statement correctly describes metallic bonds? a. they form when certain atoms lose electrons and other atoms gain electrons. b. they involve an attraction between anions and cations. they always involvpoth a metal and a nonmetal. d. they can only form between atoms of the same element. e. they form because electrons can move freely between atoms.