A. Chlorine
B. Irradiation of water by ultraviolet light
C. Cation exchanger
D. Coagulation
Correct Answer: Chlorine ✔
Last Updated: March 11, 2019
A. Chlorine
B. Irradiation of water by ultraviolet light
C. Cation exchanger
D. Coagulation
Correct Answer: Chlorine ✔
Last Updated: March 11, 2019