The silkworm is (i) a caterpillar, (ii) a larva.

Wool fibre cannot be obtained from which of the following?

Reeling of silk is

Hair trap a lot of _____ which is a poor _____ of heat.

Lohi and nali are breeds of ______

The sleeping period of silkworm is _____ hours at intervals of about six days.

_______ is the largest producer of silk.

Silk fibres are made up of a ______

The rearing of silkworms for obtaining silk is called silviculture.

The angora rabbit yields best variety of wool

Silk is a natural carbohydrate fibre.

Mooga is the strongest variety of wool.

Name some wool yielding animals

Name the goats which are found in Tibet and Ladakh.

Two fibres are made up of proteins. Name them.

Write the maximum length of continuous silk thread that can be obtained from a cocoon.

Define the term 'selective breeding'.

Write the difference between natural silk and artificial silk.

Write a short note on how first silk industry began in China.

Cocoon is used to obtain silk thread. How?

Write the different types of fibres that form the hair of sheep.

Name the most common silk moth. What are the characteristics of silk fibres obtained from the Cocoons of this silk moth?

Neha went to the market with her mother to buy a silk saree for her grandmother. The shopkeeper was showing sarees of different varieties of silk but her mother wanted to take only a pure silk saree and not an artificial one. Neha was confused that how to distinguish between a pure silk and an artificial silk saree. But her mother helped her in selecting a pure silk saree for her grandmother and she was quite elated about that.
Now, answer the following questions:
(a) How her mother distinguished between pure silk saree and an artificial silk saree?
(b) Is the pure silk saree more costly than an artificial one?
(c) What values are shown by Neha's mother?