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Disinfection of water is done to destroy pathogenic bacteria and thus prevent water-borne diseases. Disinfection of water may be done by the use of?
Ozone and iodine
Chlorine or its compounds
Ultraviolet light for irradiation of water
All of the above
LohaHridoy
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2025-01-04 04:42
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AhmedNazir
Answer: Option 4
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2022-09-01 13:21
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