Write the spellings three times in the NB which was given yesterday
and write the following answers in NB1
- What is a fibre?
- How are fibres classified? Give examples.
- Why is rayon called artificial silk?
- Name the raw materials used to make nylon and rayon.
- What is the full form of PET?
- Give two uses of nylon.
- Which fibre remains crisp and is easy to wash?