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