

MCQOPTIONS
Saved Bookmarks
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 | |