Answers

2016-01-22T22:21:00+05:30
By telling him the symptoms of not wearing the glasses. and you can tell him that the eye sight will become weak
hope it helsp
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2016-01-22T22:21:20+05:30
By telling him that it is good for his eyes. the dust , ultra violet rays would damage his eyes
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hpe it helps
plz mark me as brainest