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Out of the following materials : Cotton, Nylon, Terylene, Wool, PET, Acrylic (a) Which materials are polyesters? (b) Which material is a polyamide ? (c) Which material is used as a substitute for wool ? (d) Which material is used as a substitue for glass ? |
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Answer» Out of the following materials : Cotton, Nylon, Terylene, Wool, PET, Acrylic (a) Which materials are polyesters? (b) Which material is a polyamide ? (c) Which material is used as a substitute for wool ? (d) Which material is used as a substitue for glass ? |
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