Match List - I with List - II and choose the correct answer using codes given below :

List – I

List – II

a.

Solid

1.

Eutrophication

b.

Gaseous

2.

Insecticides

c.

Liquid

3.

Lead

d

Biological

4.

Chlorofluoro carbon

1
a - (2), b - (1), c - (3), d - (4)
2
a - (4), b - (3), c - (1), d - (2)
3
a - (3), b - (4), c - (2), d - (1)
4
a - (4), b - (3), c - (2), d - (1)

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