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तामिळनाडू बोर्ड ऑफ सेकेंडरी एज्युकेशनएस.एस.एल.सी. (इंग्रजी माध्यम) इयत्ता ७

True or False – If False give the correct answer Wool is the fibre derived from the silk worm. - Science

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प्रश्न

True or False – If False give the correct answer

Wool is the fibre derived from the silk worm.

पर्याय

  • True

  • False

MCQ
चूक किंवा बरोबर
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उत्तर

False
Correct statement: Sill is the fibre derived from the silk worm.

shaalaa.com
Animal Fibres: Wool
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 5: Animals in Daily Life - Evaluation [पृष्ठ ९१]

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सामाचीर कलवी Science - Term 3 [English] Class 7 TN Board
पाठ 5 Animals in Daily Life
Evaluation | Q III. 3. | पृष्ठ ९१

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?


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


______ is a non-biodegradable material.


What is shearing?


What are the characteristics of wool? Give any three.


What are the major steps involved in this wool factory.


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 fibre cannot be obtained from which of the following?


Wool yielding animals bear ______ on their body.


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


Various steps involved to obtain wool from fleece are given here.

  1. Picking out the burrs
  2. Dyeing in various colours
  3. Shearing
  4. Scouring
  5. Sorting

Write the above steps in the correct sequence in which they are carried out.


Figure shows three rings of circles with letters in them. Some of these letters in each ring can form the name of one wool yielding animal. Find the names of these animals.


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


The scouting process during the processing of wool refers to ______.


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