distributed - spread out or scattered about or divided up

covered - overlaid or spread or topped with or enclosed within something; sometimes used as a combining form; "women with covered faces"; "covered wagons"; "a covered balcony"

dirty, soiled, unclean - soiled or likely to soil with dirt or grime; "dirty unswept sidewalks"; "a child in dirty overalls"; "dirty slums"; "piles of dirty dishes"; "put his dirty feet on the clean sheet"; "wore an unclean shirt"; "mining is a dirty job"; "Cinderella did the dirty work while her sisters preened themselves"