MCQOPTIONS
Saved Bookmarks
| 1. |
Environmental protection agencies advice against the use of chloro-fluoro-carbon refrigerants since |
| A. | these react with water vapour and cause acid rain |
| B. | these react with plants and cause green-house effect |
| C. | these react with oxygen and cause its depletion |
| D. | these react with ozone layer |
| Answer» E. | |