How do the hair of certain animals help in keeping their bodies warm?
Hair traps air in the body, which is a poor conductor of heat resulting in raising warmth.
To which class, animal fibre or plant fibre, artificial silk belongs to?
Artificial silk is a plant fibre . It is produced using bamboo trees , and is hence also known as bamboo silk .
What is the maximum length of continuous silk thread that can be obtained from a cocoon?
The maximum length of continuous silk thread that can be obtained from a cocoon - of continuous length - is more than that of 1000 feet (1000 to 1500 feet).
Silk yarn of different textures can be prepared. Explain the statement.
Silk yarn is obtained from the cocoon of the silk moth.
There is a variety of silk moths, which look very different from one another and the silk yarn they yield is different in textures (coarse, smooth, shiny, etc.).
Thus, tassar silk , mooga silk , kosa silk , etc are obtained from cocoons spun by different types of moths.
How do we get wool from sheep?
Once the reared sheep has developed a thick growth of hair,
hair is shaved off for getting wool.
How is silk yarn obtained?
Silk yarn is obtained from the cocoons of silk moths .
What are the types of silk obtained from cocoons spun by different types of moth?
Tassar silk, Moonga silk, Kosa Silk, Mulberry Silk are different types of silk obtained from cocoon spun by different types of moth.