Civil Services Examination · प्रश्न 4
Consider the following: I. Cigarette butts II. Eyeglass lenses III. Car tyres How many of them contain plastic?
उत्तर देखें और व्याख्या
उत्तर: (C) All the three
व्याख्या
Cigarette filters (cellulose acetate), many eyeglass lenses (polymer/plastic) and tyres (synthetic rubber/plastic polymers) all contain plastic.