Fibre that are made using raw materials from------are synthetic fibres.

What is fibre?

We can digest fibres.

(i) Formaldehydes is used as a disinfectant (ii) Raw material for synthetic materials.

Define Wood fibres.

List the advantages and disadvantages of synthetics fibres.

Across:1.fibre that is used as synthetic wool.2.Aplastic used for making water bottels.3.Along chain made of smallrepeating monomers.4. Another name for this semi-synthetic fibre is artificial silk.Down: 5. Atype of fibre that is naturally obtained from is cocoon.6.Asynthetic fibre classified as polyster. 7. A polymer used for making rope.

True or False - If False,give the correct statement.Wool is the first fully processed synthetic fibre.

Write a note on optical fibre.