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प्रश्न
‘Manufacturing synthetic fibres is actually helping conservation of forests’. Comment.
उत्तर
Raw materials for natural fibres are mainly derived from plants and this means cutting a lot of trees. This leads to deforestation. But raw materials of synthetic materials are mainly petrochemicals. Hence, manufacturing synthetic fibres helps in the conservation of forests.
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संबंधित प्रश्न
Explain why some fibres are called synthetic.
Fill in the blanks with appropriate words.
Synthetic fibres are synthesised from raw materials called ______
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 |
Beans and peas are pulses.
Write the uses of synthetic fibers.
The material similar to silk in appearance is
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.
Indicate whether the following statement is True or False. Also write the false statement in their correct form.
It is risky to wear synthetic clothes while working in the kitchen.
______ is a synthetic fibre which is strong and elastic that it has the ability to bounce.
