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| 1. |
The assumption that chlorofluorocarbons would be ____ in the environment because they were chemically inert, was challenged by the demonstration of a potential threat to the ozone layer.a) deleteriousb) innocuousc) persistentd) noxiouse) durable |
| Answer» NOXIOUS is the CORRECT anwer.Noxious MEANS jarful or POISONOUS. | |