Which of the following statement is/are correct. P: Sheep are used for wool. Q: Lions are used for transportation. R: Oxen are used for agriculture.
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 ?