__________ is a synthetic fibre which is also known as artificial wool.
Which synthetic fibre feels like wool and used as a substitute for wool ?
Fill in the blanks.
(i) A polymer is a chain of many small units joined together which are called (ii) The synthetic fibres are also known as fibres. (iii) The first fully synthetic fibre was . (iv) A fibre similar to wool is . (v) A plastic used for making crockery is .