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.’
Answer the following:
(a) Which parts of the black sheep have wool?
(b) What is meant by the white fleece of the lamb?
ANSWER: - (a) Wool is obtained from the hairy fibres (hair) of the sheep.
(b) White fleece of the lamb refers to the white coloured hair of the lamb.
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
ANSWER:-iii) both a and b
3) Which of the following does not yield wool?
(i) Yak (ii) Camel (iii) Goat (iv) Woolly dog
ANSWER :-( iv) Woolly dog
4)What is meant by the following terms?
(i) Rearing (ii) Shearing (iii) Sericulture
ANSWER:-i) Rearing: Rearing means helping someone to grow up.
(ii) Shearing: It is the process of removal of fleece along with a thin layer of skin from the body of sheep.
(iii) Sericulture: Sericulture refers to the rearing of silkworms to obtain silk.
5) Given below is a sequence of stepsbin the processing of wool. Which are the missing steps? Add them. Shearing, __________, sorting, __________,__________, __________
ANSWER:-Shearing, scouring, sorting, picking of burrs, dying of fibres, making of yarn
7) Out of the following, which are the two terms related to silk production? Sericulture, floriculture, moriculture, apiculture and silviculture
(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 Column II
(i) Scouring (e) Cleaning sheared skin
(ii) Mulberry leaves (c) Food of silk worm
(iii) Yak (b) Wool yielding animal
(iv) Cocoon (a) Yields silk fibres