∙ Synthetic fibres are synthesised in laboratories chemically. They are also known as artificial or man-made fibres.
∙ All the synthetic fibres are prepared by a number of processes using raw materials of petrochemicals.
∙ Plastic is also a polymer like synthetic fibres.
Therefore,
(a) Synthetic fibres are also called artificial or man-made fibres.
(b) Synthetic fibres are synthesised from raw material called petrochemicals.
(c) Like synthetic fibres, plastic is also a polymer.