5. Match the items given in column A and B:
| Column A | Column B |
| a.Catalytic converter | i. Particulate matter |
| b.Electrostatic precipitator | ii. Carbon monoxide and nitrogen oxides |
| c.Earmuffs | iii. High noise level |
| d. Landfills | iv. Solid Wastes |
The correct matching is as follows:
| Column A | Column B |
| Catalytic converter |
Carbon monoxide and nitrogen oxides |
| Electrostatic precipitator |
Particulate matter |
| Earmuffs | High noise level |
| Landfills | Solid Wastes |