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Acid rain problem can be solved by- (i...

Acid rain problem can be solved by-
(i) controlling the sulphur content of fuel oil (ii) controlling the emission of smokes from factories (iii) the use of lead-free petrol

A

(i) only

B

(iii) only

C

(i) and (ii) only

D

(ii) and (iii) only

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