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Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 7

Write the uses of the wool. - Science

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Question

Write the uses of the wool.

Answer in Brief
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Solution

  1. Wool is a multifunctional fibre with a range of diameters that makes it suitable for clothing, household fabrics and technical textiles.
  2. Two third of wool is used in the manufacture of garments including sweaters, dresses, coats and active sportswear.
  3. Blended with other natural (or) synthetic fibres wool used as adds drape and crease resistance blankets, anti-static and noise absorbing carpets.
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Animal Fibres: Wool
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Chapter 5: Animals in Daily Life - Evaluation [Page 91]

APPEARS IN

Samacheer Kalvi Science - Term 3 [English] Class 7 TN Board
Chapter 5 Animals in Daily Life
Evaluation | Q VIII. 4. | Page 91

RELATED QUESTIONS

Which of the following does not yield wool?


What is meant by term Shearing ?


What is meant by term Sericulture?


Given below is a crossword puzzle based on this lesson. Use hints to fill in the blank spaces with letters that complete the words.

Down

(D) 1: Thorough washing

2 : Animal fibre

3 : Long thread like structure

Across

(A) 1 : Keeps warm

2 : Its leaves are eaten by silkworms

3 : Hatches from egg of moth


What are the two types of fibres that are obtained from animals?


What is shearing?


What are the characteristics of wool? Give any three.


Assertion: Wool is the fibre derived from the fur of animals.

Reason: Animals like goat, Yak, Alpaca and rabbit yields wool.


Wool fibre cannot be obtained from which of the following?


Wool yielding animals bear ______ on their body.


State whether the following statement is True or False. If false, correct them.

In India, camels and goats are generally reared for obtaining wool.


State whether the following statement is True or False. If false, correct them.

In the process of obtaining wool from fleece, sorting is done after scouring.


How do the hair of certain animals help in keeping their bodies warm?


A wholesale woollen fibre dealer gets the woollen fibre of different textures sorted for various purposes. Match the items in Column I with the woollen fibre in Column II.

Column I Column II
(a) Pashmina shawl (i) Camel wool
(b) Woollen carpet (ii) Angora wool
(c) Baby blanket (iii) Kashmir goat
(d)  Woollen sweater (iv)  Sheep wool

On burning wool, why we get the small of burning of hair?


The process called ______ involves the removal of dried wool.


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