Advertisements
Advertisements
प्रश्न
Hair trap a lot of ______, which is a poor ______ of heat.
Advertisements
उत्तर
Hair trap a lot of air, which is a poor conductor of heat.
APPEARS IN
संबंधित प्रश्न
Very Short Answer Type Questions:
Name two synthetic fibres.
Classify the following fibre as natural or synthetic:
wool
Classify the following fibre as natural or synthetic:
silk
Classify the following fibre as natural or synthetic:
Jute
Complete the Analogy:
Hemp: ______:: Wool: ______.
Complete the crossword given below with the help of clues.
Across
- Substance used as synthetic wool. (7)
- A plastic used for making containers and carry bags. (9)
- Substance made up of large number of smaller molecules. (7)
- Another name for this compound is artificial silk. (5)
Down
5. A type of fibre obtained naturally from cocoon. (4)
6. A synthetic fibre classified as polyester. (8)
7. A polymer used for making ropes. (5)
Write various steps for processing fibres into wool.
Which of the following is not a natural fibre?
Boojho went to a cloth shop. There he found a fabric which was smooth to touch, had vibrant colour and shine. The fabric could be
Describe the two main processes of making fabric from yarn.
