1.

Match the list I with list II and select the correct answer using the code given below the lists {:("List I","List II"),(A ."Depletion of ozone layer",1. co_(2)),(B. "Acid rain",2. No),(C. "Photochemical smog",3. SO_(2)),(D."Green house effect" ,4. CFC):}

Answer»

`{:(A,B,C,D),(3,4,1,2):}`
`{:(A,B,C,D),(2,1,4,3):}`
`{:(A,B,C,D),(4,3,2,1):}`
`{:(A,B,C,D),(2,4,1,3):}`

ANSWER :A::B::C::D


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