MCQOPTIONS
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| 1. |
CFC (chloro-fluoro-carbons) are greenhouse gases that have caused a rise of 0.3 C in the global temperatures in the past century. Name the CFC that is used in refrigerators. |
| A. | Carbon dioxide |
| B. | Freon |
| C. | Methane |
| D. | Ammonia |
| Answer» C. Methane | |