1. Which of the following is a physical but irreversible change? (a) lening of paper (b) Melting of (0) Blowing of Dalloon (d) Cllowing of an electric bub
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You have a whole bunch of mistakes in the typing the options. Its really hard to understand. Anyway As far as my concern the answers is A) Lining (Or whatever it was) Of paper
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a) lening of paper is the correct answer
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