

MCQOPTIONS
Saved Bookmarks
1. |
THE_POLLUTANT_MOSTLY_RELEASED_BY_AUTOMOBILES_IS?$ |
A. | CO |
B. | CO<sub>2</sub> |
C. | O<sub>3<</sub> |
D. | CH<sub>4</sub> |
Answer» B. CO<sub>2</sub> | |