How is carding of wool done?

Label the life cycle of a silk moth given below and answer the questions.

a) In which stage does the silk moth feed on the plant leaves?

b) In which stage is the cocoon formed?

c) How is the cocoon formed?

d) What happens to the caterpillar inside the cocoon?

Give reason for the following:

Woollen clothes are worn in winter

Give reason for the following:

Grading and sorting is done during the processing of wool.

Give reason for the following:

Worsted wool is used for making uniforms for athletes.

Give reason for the following:

Shearing does not hurt sheep.