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प्रश्न
Rana wants to buy shirts for summer. Should he buy cotton shirts or shirts made from synthetic material? Advise Rana, giving your reason.
उत्तर
Rana should buy shirts made from cotton. This is because cotton is a good absorber of water. It can soak the sweat coming out of our body and expose it to the environment. Thus, it helps in evaporating the liquid (sweat), thereby cooling our body.
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संबंधित प्रश्न
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.
Crossword
Across
1. Fibre that is used as synthetic wool.
2. A plastic used for making water bottles.
3. A long chain made of small repeatingmonomers.
4. Another name for this semi-synthetic fibre is artificial silk.
Down
5. A type of fibre that is naturally obtained from a cocoon.
6. A synthetic fibre classified as polyester.
7. A polymer used for making rope.
The world’s most valuable fiber is ______.
The most suitable material for the preparation of handles of cooking utensils is
A synthetic fiber which looks like silk is obtained by chemical treatment of wood pulp. It is, therefore, known as artificial silk. What is its common name?
The first fully synthetic fibre was ______.
Write an activity to show that synthetic fibres are stronger than the cotton fibres.
______ is a synthetic fibre which is strong and elastic that it has the ability to bounce.