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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 | |