MCQOPTIONS
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| 1. |
Air borne pollutants that cause Asthma and Bronchitis :a) Pollen grainsb) Mercuryc) Bacteriad) Lead |
| A. | and b) |
| B. | and c) |
| C. | and c) |
| D. | and d) |
| Answer» D. and d) | |