MCQOPTIONS
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| 1. |
_______legally_approved_the_establishment_of_National_Ambient_Air_Quality_Standards.$ |
| A. | CAA 1950 |
| B. | CAA 1960 |
| C. | CAA 1970 |
| D. | CAA 1980 |
| Answer» D. CAA 1980 | |