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प्रश्न
How do the hair of certain animals help in keeping their bodies warm?
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उत्तर
The hair of the body of the certain animals trap a lot of air. Since air is a poor conductor of heat, this shields the body from cold and keeps it warm.
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संबंधित प्रश्न
You must be familiar with the given nursery rhymes
Baa baa black sheep, have you any wool.
Answer the following:
Which parts of the black sheep have wool?
Which of the following does not yield wool?
Given below is a sequence of steps in the processing of wool. Which are the missing steps? Add them
Shearing, __________, sorting, __________, __________, __________
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
Write the uses of the wool.
Assertion: Wool is the fibre derived from the fur of animals.
Reason: Animals like goat, Yak, Alpaca and rabbit yields wool.
Wool yielding animals bear ______ on their body.
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.
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 |
The process called ______ involves the removal of dried wool.
