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Which substance is used in a sewage treatment system to kill harmful bacteria? * ammonia chlorine sand soap
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Which substance is used in a sewage treatment system to kill harmful bacteria? *

ammonia
chlorine
sand
soap

User Damiano Celent
by
5.8k points

1 Answer

3 votes
the answer is chlorine
User Tenshi Munasinghe
by
5.4k points
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