With reference to the treatment of polluted water at home by aeration, filtration, chlorination processes answer the following questions.
A. What changes did we observe in the appearance of liquid after aeration? Did aeration change the odour?
B. What is removed by the sand filter?
C. Does chlorine change the colour of treated water?
D. Do chlorine have an odour?
Answer:A
With reference to the treatment of polluted water at home by aeration, filtration, chlorination processes answer the following questions.
A. What changes did we observe in the appearance of liquid after aeration? Did aeration change the odour? B. What is removed by the sand filter? C. Does chlorine change the colour of treated water? D. Do chlorine have an odour?