Whose role is to act as the bank for the nation’s banks? fdic federal reserve system mutual savings banks mortgage companies

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.