FORESTRY
ECOLOGY AND ENVIRONMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which substance is used in a sewage treatment system to kill harmful bacteria?
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ammonia
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chlorine
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sand
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soap
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Explanation:
Detailed explanation-1: -Chlorine is usually added in small quantities to water to make is safer for consumption. It kills germs and other organisms in water since it’s harmful to living organisms. This is why chlorine is a good disinfectant.
Detailed explanation-2: -Chlorine is a strong oxidizing disinfectant that has been used to treat drinking water supplies for more than 60 yr. The gas was named “chlorine” after the Greek word for green, “chloros, ‘’ because of its characteristic color.
There is 1 question to complete.