| Column A | Column B |
| (i) Catalytic converter (ii) Electrostatic precipitator (iii) Ear muffs (iv) Land fills | (a) Particulate matter (b) Carbon monoxide and nitrogen oxides (c) High noise level (d) Solid wastes |
Answer:
(i) B; (ii) (a);
(iii) C; (iv) (d).
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