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Answers
Q.1) Which part of the sheep have wool?
Wool is obtained from the fleece of sheep.
- Fleece is a coat of soft and fine hair which covers the body of the sheep.
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Q.2) Define :-
- a) Selective breeding
- b) Shearing
Selective breeding : It is the process of selecting parents for obtaining desirable characters in their offspring.
Shearing : The process for removing fleece from the sheep or any other animal is called shearing.
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Q.3) Write two types of fibres present in the skin of sheep.
The two fibres present in the skin of sheep are :
- Coarse breed hair
- Soft under hair
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Q.4) Write different steps involved in the processing of fibres into wool.
Steps involved in the processing of fibres into wool are :
- Shearing
- Scouring
- Sorting
- Grading
- Dyeing
- Drying
- Spinning
- Weaving & Knitting
Q No. 1 = Which part of the sheep have wool?
Ans = The fine and soft under hair that grows close to the skin of the sheep have wool.
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Q No. 2 = Define :-
a) selective breeding
= The process of selecting parent sheep for obtaining special characteristics in their offspring ( such as soft under hair) is called selective breeding.
b) Shearing
= The process of removing hair ( or cutting off hair) from the body of sheep in the form of fleece is called shearing.
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Q No 3 = Write two types of fibres present I'm the skin of sheep.
Ans = The hairy of sheep has two of fibres that forms it's fleece ( or wool coat) (i) the coarse beard hair and (ii) the fine under hair close to the skin.
⋆ The fine hair provides fibres for making wool.
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Q No. 4 = Write different steps involved in the processing of fibres into wool.
Ans = The different steps involved in the processing of fibres into wool are :-
i) Shearing
= The process of removing hair or ( cutting off hair) from the body of sheep in form of fleece is called shearing.
ii) Scouring
= The process of washing the fleece ( cut hair of sheep) that removes dust , dirt , dried sweat and grease is called scouring.
iii) Sorting
= The process of separating the fleece of sheep into section according to the quality of woollen fibres ( such as coarse, long, short etc..) is called sorting.
iv) Dyeing
= ⋆The natural fleece or hair of sheep ( or goats) is white, brown or black in color. ⋆
= The white woollen fibres obtained by sorting can be dyed in different colours.
v) combing
= It is a method to prepare woollen fibres for spinning yarn. This is done by using comb having metalled teeth. It also straightens the entangled woollen fibres and also removed small fluffy fibres ( called burrs) which may be caught in them.
vi) spinning
= The long woollen fibres are spun ( or twisted) into thick yarns called wool ( which is used for knitting sweaters etc..) is called spinning.
⋆The quality of wool depends upon the breed of sheep from which wool is obtained. ⋆
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# What is fleece?
= The cut off "wool coat " of a sheep ( along with a layer of skin) is called fleece .
# When did sheep hairs are removed?
= Their hairs are removed during summer season as because they can survive without hairs in summers and they grow there hairs again during winters.
# Why sheep don't get hurt while shearing ?
= Shearing does not hurt the sheep because the uppermost layer of sheep is dead.
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