Multiple choice

Which of the following can be used to treat polluted water and make it safe for drinking?

  1. Ozone treatment

  2. Filtration

  3. Chlorine treatment

  4. Distillation

  5. By adding disinfectant

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Ozone is a powerful oxidizing agent, which kills all types of bacteria, virus, and protozoa present in the water and makes water safe to drink. Before the ozone treatment, the water must be cleared of all types of mud, sewage and chemicals. Ozone is a molecule formed by a combination of three oxygen atoms.

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