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Column-I Column-II
A) Freons P) Rise in temperature of earths surface
B) Ozone Q) Forms holes in ozone layer
C) Carbon dioxide R) Protects life from UV radiation
D) Sulphur dioxide S) Increase in fluorine ion concentration
T) Acid rain
(A) (B) (C) (D)
1) Q R P T
2) P Q R S
3) R S P T
4) Q T S R

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answer is A.

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Detailed Solution

Freons causes depletion of O3
O₃ filter uv radiation
High CO₂ concentration increases earth temperature,
SO₂ cause acid rain

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