MCQOPTIONS
Saved Bookmarks
| 1. |
Exposure to SO2 containing chimney gases results in the__________________? |
| A. | Reduction in strength of leather & cloth |
| B. | Acceleration of corrosion rates of metals |
| C. | Increased drying & hardening time of paints |
| D. | All A., B. and C. |
| Answer» E. | |