MCQOPTIONS
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| 1. |
Zone B of affected Seveso area had a TCDD soil concentration of between ____ and ____ micrograms per square meter. |
| A. | 5, 50 |
| B. | 10, 20 |
| C. | 20, 30 |
| D. | 40, 50 |
| Answer» B. 10, 20 | |