fill in the blanks a) almost all synthetic fibres are prepared by using raw material of dash Origin (b) dash is a very familiar form of polyester used for making bottles jars etc
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a) almost all synthetic fibres are prepared by using raw material of petroleum origin
b) PET is a very familiar form of polyester used for making bottles jars etc
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Answer:
b) petroleum
c) PET or polythylene terephthalate
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