Fibre to Fabric

NCERT Solution

Question 1: You must be familiar with the following nursery rhymes

  1. ‘Baa baa black sheep have you any wool’.
  2. ‘Mary had a little lamb. whose fleece was white as snow’.

Answer the following question.

(a) Which parts of the black sheep have wool?

Answer: The skin of black sheep has wool.

(b) What is meant by the fleece of the lamb?

Answer: Fleece means hair of the lamb.

Question 2: The silkworm is (a) caterpillar (b) a larva: choose the correct option.

  1. a
  2. b
  3. both ‘a’ and ‘b’
  4. neither ‘a’ nor ‘b’

Answer: (iii) both 'a' and 'b'

Question 3: Which of the following does not yield wool?

  1. Yak
  2. Camel
  3. Goat
  4. Woolly dog

Answer: (d) Woolly dog

Question 4: What is meant by the following terms?

(a) Rearing

Answer: Taking care of animals including feeding, grazing, breeding, etc. for meat, and other useful products.

(b) Shearing

Answer: The removal of wool from the sheep is called shearing.

(c) Sericulture

Answer: The rearing of silkworm for obtaining silk is known as sericulture.

Questions 5: Give below is sequence of steps in the processing of wool. Which are the missing steps? Add them.

Shearing _________ Sorting _________ _______________.

Answer: Shearing Scouring Sorting Colouring Spinning

Question 6: Make sketches of the two stages in the life history of the silk moth which are directly related to the production of silk.


stages of life cycle of silk moth

Question7: Out of the following which are the two terms related to silk production?

  1. Sericulture
  2. Floriculture
  3. Moriculture
  4. Apiculture
  5. Silviculture

Answer: (a) Sericulture and (b) Moriculture are related to silk production.

Question 8: Match the following

Column IColumn II
(1) Scouring(a) Yields silk fibres
(2) Mulberry leaves(b) Wool yielding animal
(3) Yak(c) Food of silkworm
(4) Cocoon(d) Reeling
(e) Cleaning sheared skin

Answer: (1) e, (2) c, (3) b, (4) a

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