MCQOPTIONS
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| 1. |
Natural water is impure and needs to be purified before this water can be supplied to homes for drinking purposes. The sequence of steps involved in purification of water is |
| A. | Filtration, sedimentation, decantation and aeration |
| B. | Sedimentation, loading, filtration and chlorination |
| C. | Chlorination, aeration, sedimentation and filtration |
| D. | Chlorination, filtration and distillation. |
| Answer» C. Chlorination, aeration, sedimentation and filtration | |