MCQOPTIONS
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| 1. |
Sewage sickness occurs when |
| A. | Sewage contains pathogenic organisms |
| B. | Sewage enters the water supply systems |
| C. | Sewers get clogged due to accumulation of solids |
| D. | Voids of soil clogged due to continuous application of sewage on a piece of land |
| Answer» E. | |