Question

2. The silkworm is (a) a caterpillar, (b) a larva. Choose the correct op
Exercises
1.
You must be familiar with the following nursery rhymes:
(0 'Baa baa black sheep, have you any wool.'
(1) 'Mary had a little lamb, whose fleece was white as snow
Answer the following:
(a) Which parts of the black sheep have wool?
(b) What is meant by the white fleece of the lamb?
(1) a (11) b (111) both a and b
(iv) neither a nor b.
3. Which of the following does not yield wool?
(6) Yak (1) Camel () Goat (iv) Woolly dog
What is meant by the following terms?
(1) Rearing (1) Shearing (1) Sericulture
Given below is a sequence of steps in the processing of wool. Which
the missing steps? Add them.
Shearing.
sorting.
6. Make sketches of the two stages in the life history of the silk moth was
are directly related to the production of silk.
7.
Out of the following, which are the two terms related to silk producten
Sericulture, floriculture, moriculture, apiculture and silviculture
Hints: (1) Silk production involves cultivation of mulberry leaves
rearing silkworms.
(10) Scientific name of mulberry is Morus alba.
8. Match the words of Column I with those given in Column II:
Column 1
Column II
1. Scouring
(a) Yields silk fibres
2. Mulberry leaves
(b) Wool yielding animal
3. Yak
(c) Food of silk worm
4. Cocoon
(d) Reeling
(e) Cleaning sheared skin​

Answer 1

Answer:

2= a silkworm is caterpillar

Answer 2

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(1) You must be familiar with the following nursery rhymes:

(i) ‘Baa baa black sheep, have you any wool.’

(ii) ‘Mary had a little lamb, whose fleece was white as snow.’

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

Hairy part of black sheep have wool.

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

Fleece of lamb is meant by white fleece.

(2) The silkworm is (a) a caterpillar, (b) a larva.

Choose the correct option.

(i) a

(ii) b

(iii) both a and b ✓

(iv) neither a nor b.

(3) Which of the following does not yield wool?

(i) Yak

(ii) Camel

(iii) Goat

(iv) Woolly dog ✓

(4) What is meant by the following terms?

(i) Rearing :

• Raising of animals for fur or milk is known as rearing.

(ii) Shearing :

• The removal of layer of skin from the sheep's body is called Shearing.

(iii) Sericulture :

• The rearing of silk worm to obtain silk is known as Sericulture.

(5) Given below is a sequence of steps in the processing of wool. Which are the missing steps? Add them.

Shearing, Scouring, sorting, picking of burrs, dying of fibres, yarn making.

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

Answer in attachment

(7) Out of the following, which are the two terms related to silk production?

(Sericulture, floriculture, moriculture, apiculture and silviculture)

Hints: (i) Silk production involves cultivation of mulberry leaves and rearing silkworms. (ii) Scientific name of mulberry is Morus alba.

Answer : Sericulture and Moriculture

8. Match the words of Column I with those given in Column II:

Column I :

(1) Scouring

(2) Mulberry leaves

(3) Yak

(4) Cocoon

Column II :

(a) Yields silk fibres

(b) Wool yielding animal

(c) Food of silkworm

(d) Reeling

(e) Cleaning sheared skin

Answer :

(1) - (e)

(2) - (c)

(3) - (b)

(4) - (a)