Afreshman who wants to graduate from high school with a high gpa has: a. an emotional goal. b. a mental goal. c. a short-term goal. d. a long-term goal.

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.