Rearing and Breeding of Sheep for Wool

Q.

Define selective breeding.

Q. 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

Q. The white hair on the sheep shown below is called ___.

1. Fleece

2. Fur

3. Crimps

4. Covering

Q. During which of the following season shearing of sheep is done in India?

1. Winter season
2. Summer season
3. Autumn season
4. Rainy season

Q.

The ___ of animals such as sheep, goats, and cattle is used for manufacturing leather goods.

Q.

__ breeding is a process of selecting the parents for obtaining special characters in the offspring.

Q.

Selective breeding is a process of

1. selecting the offsprings with desired properties

2. selecting the parents with desired properties

3. selecting an area for breeding

4. selecting fine hair for good quality wool

Q. Silk can be obtained from the cocoon of silkworms by the process of shearing.

1. True
2. False

Q.

The process of selecting parent animals for obtaining desired characteristics in offsprings such as long hair, soft under hair etc. is called ______________________.

1. Evolution

2. Natural Selection

3. Animal Rearing

4. Selective Breeding

Q.

What is selective breeding?

Q.

Explain the following: [2 MARKS]

1) What do you mean by white fleece of the lamb?

2) Which part of the black sheep has wool?

Q.

Which of the following is the type of hair found in sheep?

1. Under hair

2. Down feathers

3. Beard hair

4. Feral hair

Q.

What is the meaning of mulberry silkmoth

Q. Group of animals which gives wool are:

1. Sheep camel, lion and rabbit
2. Sheep, goat, camel and yak
3. Goat, cat, sheep and camel
4. Rabbit, silkworm, buffalow and cow

Q.

Explain the differences between:

angora wool and cashmere wool

Q.

Question 4 (i)
What is meant by the following terms?

(i) Rearing

Q.

Appu inquired about what would happen to the fleece once it is removed. The farmer explained the process had four more steps. Which of the following options gives the correct sequence of steps?

1. Scouring→Carding→Sorting→Combing

2. Carding→Combing→Sorting→Scouring

3. Scouring→Sorting→Carding→Combing

4. Combing→Carding→Sorting→Scouring

Q.

What is meant by selective breeding?

Q. Llama and Alpaca are found in _________.

1. India
2. South America
3. Pakistan
4. None of these

Q.

2. What is obtained from the hair of rabbits, yak and camels ?

Q. 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

Q.

3. Give two examples of steps involved in producing wool.

Q.

Question 6

Selective breeding is a process of
(a) selecting the offsprings with desired properties.
(b) selecting the parents with desired properties.
(c) selecting an area for breeding.
(d) selecting fine hair for good quality wool.

Q. Wool fibre can be obtain from_________.

1. sheep
2. goat
3. llama
4. All of these

Q. Wool is obtained from _______ of sheep.

1. skin
2. toes
3. fleece
4. All of the above

Q. The correct order in the processing of wool is:

1. $Shearing-sorting-scouring-fiberspinning-fiberdying-rolling$
2. $Shearing-scouring-sorting-fiberspinning-fiberdying-rolling$
3. $Shearing-scouring-sorting-fiberdying-fiberspinning-rolling$
4. $Shearing-sorting-scouring-fiberspinning-rolling-fiberdying$

Q. The process of obtaining silk fibres from the cocoon is called.

1. weaving
2. reeling
3. crading

Q. Sheared skin of a sheep is cleaned during the process of _______________.

1. rearing
2. sorting
3. scouring
4. shearing

Q.

Silkworms are a kind of worms which live on mulberry trees.

1. larvae

2. caterpillars

Q.

How rearing of the silkworm is done? How is it different from reeling?