MCQOPTIONS
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| 1. |
Environmental protection agencies advice against the use of chlorofluorocarbon refrigerants since |
| A. | These react with water vapour and cause acid rain |
| B. | These react with plants and cause greenhouse effect |
| C. | These react with oxygen and cause its depletion |
| D. | These react with ozone layer |
| Answer» E. | |