Classify the following fibres as natural or synthetic:

3

(a)

Explain the process of making yarn from fibre.

3

(a)

We need clothes. Write some points to specify this statement.

3

(a)

What happens when the yarns are burnt? Do they shrink away from the flame or melt? What type of odour is given off?

3

(a)

Describe the main features of fabric which is made up of coconut fibre.

3

(a)

What did people in ancient times use to cover their body?

3

(a)

What are natural fibres ? Give two examples for each plant and animal fibres.

3

(a)

Fill in the names of useful items made from jute fibres in Fig. One such example is given.

3

(a)

How are synthetic fibres more advantageous and economical than natural fibres?

3

(a)

Which is the best season for the cultivation of jute? In which part of India is jute grown?

3

(a)