MCQOPTIONS
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| 1. |
Ventilators are provided at the top of the room |
| A. | to bring oxygen for breathing. |
| B. | so that sunlight may enter the room. |
| C. | to maintain convectional currents to keep the air fresh in the room. |
| D. | to provide an outlet for carbon dioxide. |
| Answer» D. to provide an outlet for carbon dioxide. | |