Question

What is a fibre?
2. What are the different sources of wool?
3. What is selective breeding?
4. What are the two types of fibres that form the fleece of a sheep?
5. Why does sheep have a thick coat of hair on their body?
6. Where are Llama and Alpaca found?
7. Why shearing of wool done only in summer? Does shearing hurts the sheep?
8. Name some Indian breeds of sheep.
9. What is the most common silk moth?
10. What do you understand by occupational hazard?
11. What is Sericulture?
12. Name the following methods:
(a) Removing fleece from the body of animals:
(b) Washing fleece to free it from grease, dirt and dust: (c) Grouping of wool as per length, colour and texture: (d) Colouring of the fibres:
(e) Twisting of fibre into yarns:
13. Briefly explain the steps involved in the production of wool.
14. List the different varieties of silk.
15. Give the scientific name of Mulberry leaf.
16. What is the Scientific name of Mulberry Silk Moth?
17. What do you mean by reeling of silk?
18. Explain the process of obtaining silk.
19. Write a short note on rearing of silkworms.
20. Draw a sketch showing the stages in Life cycle of silk moth.

Answer 1

Answer:

A computer is a machine that can store and process information. Most computers rely on a binary system that uses two variables, 0 and 1, to complete tasks such as storing data, calculating algorithms, and displaying information.