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Question
Give reason.
Why umbrellas are made up of synthetic clothes?
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Solution
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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Rayon is different from synthetic fibres because
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Beans and peas are pulses.
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.
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