Oque acontece na comunidade com as águas servidas (água do tanque, do banho, das pias)? são coletadas ou jogadas livremente na rua, no riacho ou no mar?

Ronald wants to see if a new shower cleaner works better in removing soap than his old cleaner. he uses the new cleaner on one half of the shower tiles and his old cleaner on the other half. identify the independent and dependent variables in this experiment. enter your answer in the space provided.