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प्रश्न
Give reason.
Why umbrellas are made up of synthetic clothes?
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उत्तर
Umbrellas are made up of synthetic clothes because synthetic fibres are more hydrophobic than natural fibres. Nylon and polyester, the two fabrics most commonly used in umbrellas. Synthetic is not naturally absorbed water like natural fibres. (Cotton, wool).
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संबंधित प्रश्न
Give examples which indicate that nylon fibres are very strong.
Match the terms of column A correctly with the phrases given in column B.
| A | B | ||
| 1 | Polyester | a | Prepared by using wood pulp |
| 2 | Teflon | b | Used for making parachutes and stockings |
| 3 | Rayon | c | Used to make non-stick cookware |
| 4 | Nylon | d | Fabrics do not wrinkle easily |
Synthetic fibre is also called _______ fibre.
True or False
It is good to wear clothes made of synthetic fibres while cooking.
The artificial fibers are also known as ______.
Complete the Analogy:
______: Films:: Nylon: Fishing nets.
The most suitable material for the preparation of handles of cooking utensils is ______.
The synthetic fibres are also known as ______ fibres.
Indicate whether the following statement is True or False. Also write the false statement in their correct form.
Synthetic fibres do not melt on heating
Write the importance of synthetic polymers in our life.
