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| Q. |
Which of the following statement is wrong? |
| A. | For land disposal, large areas with preferably sandy types of soil are required. |
| B. | The land disposal requires either preliminary or primary treatment of sewage. |
| C. | The land disposal saves the inland stream from getting polluted by sewage. |
| D. | none of the above |
| Answer» D. none of the above | |
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