Question

Which of the following can be used to disinfect the clean water in a sewage treatment plant before releasing it into the disrribution system A. Iodine B. Ozone C. Oxygen D. Chlorine *​

Answer 1

Answer:

chlorine I guess. But pls confirm

Explanation:

bec. ozone is a harmful gas, iodine is incorrect and oxygen also incorrect.

Answer 2

Answer:

D. Chlorine

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