Freeing memory

This might be an obvious question but I am a little unsure so I am going to go ahead and ask: When I create a pointer of array, and while declaring I initialize them, am I responsible of freeing them? (since I didnt have to call malloc I think the OS releases it..) And where are they saved, in the heap ? Example: char mypntrs[]= { "hi", "this", "is", "a", "test" }; (BTW, this is in C, I guess it applies to every language, the question I mean) Thanks.