1 what are natural fibres?give examples.
2 what are synthetic fibres?give examples.
3 how do you get jute fibres from jute plant?
4 list three uses of cotton fibres.
5 what is ginning?
6 explain the process of making yarn from fibres? name the devise used for spinning.
7 what is weaving?what are looms.
8 from which part of the jute plant and cotton obtained?
9 what is knitting?
10 name two items that are made from cocunut fibres?
Due to paucity of time it would not be possible for us to provide the answers to all your queries. We are providing solutions to some of your queries. Try solving rest of the questions yourself and if you face any difficulty then do get back to us.
1. The fibres obtained from plants and animals are called natural fibres. Examples of natural fibres include cotton, jute, wool, and silk.
2. Man-made fibres are known as synthetic fibres. They are made by carrying out reactions between various chemicals. For example: Rayon, nylon, acrylic, and polyester.
3. When the jute plant is in the flowering stage, it is harvested. After harvesting, it is kept submerged in water for a few days. During this period, the stem of the plant rots and the fibres (present in the stem) remain. The process by which fibres are obtained from the stem of the plant is known as retting. These fibres can then be separated from the non-fibrous matter by hand. This process is known as stripping. After the fibres are separated, they can be spun into yarns and fabrics can be made from these yarns.
1 fibres which are obtained from plants and animals are called natural fibres. example plant fibres _ cotton jute flax linen etc. animal fibres - wool- fleeces sheep or goat. silk - cocon of silkworm. leather - hides of animal skin like.
2 fibres which are madefrom petrochemical are called synthetic fibres. they are not obtained from plant or animal