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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?
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
______ is a non-biodegradable material.
What are the characteristics of wool? Give any three.
Write the uses of the wool.
Wool fibre cannot be obtained from which of the following?
Wool yielding animals bear ______ on their body.
Various steps involved to obtain wool from fleece are given here.
- Picking out the burrs
- Dyeing in various colours
- Shearing
- Scouring
- Sorting
Write the above steps in the correct sequence in which they are carried out.
