THESE NOTES ARE PREPARED ACCORDING TO JKBOSE SYLLABI IN SIMPLIFIED AND CONCISE PATTERN
Exercises
1. You must be familiar with the following nursery rhymes:
"Baa baa black sheep, have you any wool". "Mary had a little lamb, whose fleece was white as snow".
Answer the following questions:
(a) Which parts of the black sheep have wool?
"Baa baa black sheep, have you any wool". "Mary had a little lamb, whose fleece was white as snow".
Answer the following questions:
(a) Which parts of the black sheep have wool?
Ans: Wool is obtained from the fleece of the sheep.
(b) What is meant by the white fleece of the lamb?
Ans: White fleece of a lamb means the lamb has white coloured hair on its body.
2. The silkworm is (a) a caterpillar,(b) a larva. Choose the correct option.
(i) a (ii) b (iii) both a and b (iv) neither a nor b
Ans: iii. Both A and B
3. Which of the following does not yield wool?
(i) Yak (ii) Camel (iii) Goat (iv) Wooly dog
Ans: iv. Wooly dog
4. What is meant by following terms?
(i) Rearing (ii) Shearing (iii) Sericulture
Ans:
(i) Rearing: Rearing means taking care of certain living organims in order to obtain useful products from them. E.g Humans rear sheep, cows, hen etc.
(ii) Shearing: Shearing is the process of removal of fleece of sheep along with the thin layer of skin.
Shearing does not hurt the sheep.
(iii) Sericulture: Sericulture is the branch of science related to rearing of silkworms for obtaining silk.
5. The science of raising silkworms so as to obtain silk cocoons is called:
(a) Apiculture (b)Horticulture
(i) Rearing: Rearing means taking care of certain living organims in order to obtain useful products from them. E.g Humans rear sheep, cows, hen etc.
(ii) Shearing: Shearing is the process of removal of fleece of sheep along with the thin layer of skin.
Shearing does not hurt the sheep.
(iii) Sericulture: Sericulture is the branch of science related to rearing of silkworms for obtaining silk.
5. The science of raising silkworms so as to obtain silk cocoons is called:
(a) Apiculture (b)Horticulture
(c) Sericulture (d)Pisciculture
Ans: c. Sericulture
6. The hair on the skin of sheep, yak, etc, from which wool can be obtained.
(a) Wool (b) Fleece (c) Silk (d)Yarn
Ans: b. Fleece
7. The proper sequence of life cycle of a silkworm is:
(a) Egg __ Pupa __ Caterpillar
(b) Pupa __ Egg __ Caterpillar
(c) Eggs __ Caterpillar __ Pupa
(d)Caterpillar __ Egg ___ Pupa
Ans: (c) Eggs __ Caterpillar __ Pupa
8. Which of the following diseases is caused due to wool industry
(a)Typhoid (b) Cholera (c) Tetanus (d)Anthrax
Ans: (d)Anthrax
9. Given below is a sequence of steps in the processing of wool. Which are the missing steps?Add them
Shearing,__________,Sorting,__________,__________,__________
Ans: Shearing, Scouring ,Sorting, Scouring ,Dyeing ,Rolling
10. Make sketches of the two stages in the life history of the silk moth which are directly related to the production of silk.
Ans:
Ans: c. Sericulture
6. The hair on the skin of sheep, yak, etc, from which wool can be obtained.
(a) Wool (b) Fleece (c) Silk (d)Yarn
Ans: b. Fleece
7. The proper sequence of life cycle of a silkworm is:
(a) Egg __ Pupa __ Caterpillar
(b) Pupa __ Egg __ Caterpillar
(c) Eggs __ Caterpillar __ Pupa
(d)Caterpillar __ Egg ___ Pupa
Ans: (c) Eggs __ Caterpillar __ Pupa
8. Which of the following diseases is caused due to wool industry
(a)Typhoid (b) Cholera (c) Tetanus (d)Anthrax
Ans: (d)Anthrax
9. Given below is a sequence of steps in the processing of wool. Which are the missing steps?Add them
Shearing,__________,Sorting,__________,__________,__________
Ans: Shearing, Scouring ,Sorting, Scouring ,Dyeing ,Rolling
10. Make sketches of the two stages in the life history of the silk moth which are directly related to the production of silk.
Ans:
11. Out of the following, which are the two terms related to silk production?
Sericulture, floriculture, moriculture, apiculture and silviculture.
Hints:
i. Silk production involves cultivation of Mulberry leaves and rearing silkworms
ii. Scientific name of Mulberry is Morus alba
Ans: Sericulture and Moriculture
12. Match the following:
Ans:
1. Scouring ::::: e.Cleaning sheared skin
2. Mulberry :::::: c. Food for silkworm
3. Yak ::::::::::: b. Wool yeilding animal
4. Cocoon:::::::: a. Yields silk fibres
13. Given below is a crossword puzzle based on this lesson. Use hints to fill in the blank spaces with letters that complete the words.
Ans:
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