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12 November, 08:21

Waste water from industries and domestic sources can be treated by chlorination or ultraviolet radiation. There are pros and cons to using either chlorine or UV radiation to kill harmful microorganisms. What is one reason chlorination would be preferred over ultraviolet radiation?

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  1. 12 November, 08:54
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    Chlorine not only kills bacteria but provides a residual effect on returning microorganisms.
  2. 12 November, 09:20
    0
    B is the correct answer this
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