Match column-I with column-II and select the correct option.

	Column-I		Column-II
A.	Catalytic converter	i.	Particulate matter
B.	Electrostatic precipitator	ii.	Carbon monoxide and nitrogen oxides
C.	Earmuffs	iii.	High noise level
D.	Land fills	iv.	Solid wastes

	A	B	C	D
1.	i	ii	iii	iv
2.	ii	i	iii	iv
3.	iv	iii	ii	i
4.	iii	ii	iv	i

• A

  1

• B

  2

• C

  3

• D

  4