A group that migrants to another country intermarries with people from a new country, and within three generations is indistinguishable from the dominant culture in a new country. This process is best described as a) migration diffusion b) acculturation c) transculturation d) assimilation

What happens when two galaxies approach each other? a. they form a black hole. b. they merge because of the strong gravitational pull they exert on each other. c. they shred each other into smaller galaxies. d. they form a supernova. e. they repel each other away because of their strong gravitational pull.