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Miche Miche
wrote...
Posts: 334
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5 years ago
What is the purpose of treating water with chlorine gas or ozone during water purification?
A) to kill bacteria
B) to improve taste
C) to improve color
D) to remove solids
E) none of the above
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wrote...
5 years ago
 A
Miche Author
wrote...
5 years ago
My teacher is very rude and likes to speed his way through a lesson without letting the class ask questions. Thank you for helping me. You're a life saver Slight Smile
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